1
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Yang R, Zhou Z, Jiang H, Kam TS, Chen K, Ma Z. Asymmetric Synthesis of Arboduridine. Angew Chem Int Ed Engl 2024; 63:e202316016. [PMID: 38038685 DOI: 10.1002/anie.202316016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 12/02/2023]
Abstract
The first asymmetric total synthesis of the monoterpenoid indole alkaloid arboduridine has been accomplished. The tricyclic A/B/D ring system was constructed by an enantioselective Michael reaction followed by intramolecular nucleophilic addition. Intramolecular α-amination of a ketone forged the piperidine ring, while a Horner-Wadsworth-Emmons (HWE) reaction was used to form the pyrrolidine ring. A reduction cyclization cascade led to formation of the tetrahydrofuran ring.
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Affiliation(s)
- Rui Yang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou, 510641, P. R. China
| | - Zeyu Zhou
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou, 510641, P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou, 510641, P. R. China
| | - Toh-Seok Kam
- Department of Chemistry, Faculty of Science, Universiti Malaya, 50603, Kuala Lumpur, Malaysia
| | - Kai Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P. R. China
| | - Zhiqiang Ma
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry & Chemical Engineering, South China University of Technology, Wushan Road-381, Guangzhou, 510641, P. R. China
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, Guangdong, 518055, P.R. China
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2
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Lorea B, García-Urricelqui A, Odriozola JM, Razkin J, Espinal-Viguri M, Oiarbide M, Mielgo A, García JM, Palomo C. Organocatalytic Michael Addition of Unactivated α-Branched Nitroalkanes to Afford Optically Active Tertiary Nitrocompounds. Org Lett 2023. [PMID: 38009850 DOI: 10.1021/acs.orglett.3c03340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2023]
Abstract
The direct, asymmetric conjugate addition of unactivated α-branched nitroalkanes is developed based on the combined use of chiral amine/ureidoaminal bifunctional catalysts and a tunable acrylate template to provide tertiary nitrocompounds in 55-80% isolated yields and high enantioselectivity (e.r. up to 96:4). Elaboration of the ketol moiety in thus obtained adducts allows a fast entry to not only carboxylic and aldehyde derivatives but also nitrile compounds and enantioenriched 5,5-disubstituted γ-lactams.
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Affiliation(s)
- Beñat Lorea
- Departamento de Ciencias, Institute for Advanced Materials and Mathematics (InaMat2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
| | - Ane García-Urricelqui
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizábal 3, 20018 San Sebastián, Spain
| | - José M Odriozola
- Departamento de Ciencias, Institute for Advanced Materials and Mathematics (InaMat2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
| | - Jesús Razkin
- Departamento de Ciencias, Institute for Advanced Materials and Mathematics (InaMat2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
| | - Maialen Espinal-Viguri
- Departamento de Ciencias, Institute for Advanced Materials and Mathematics (InaMat2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizábal 3, 20018 San Sebastián, Spain
| | - Antonia Mielgo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizábal 3, 20018 San Sebastián, Spain
| | - Jesús M García
- Departamento de Ciencias, Institute for Advanced Materials and Mathematics (InaMat2), Universidad Pública de Navarra (UPNA), 31006 Pamplona, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizábal 3, 20018 San Sebastián, Spain
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3
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Oiarbide M, Palomo C. Brønsted Base-Catalyzed Enantioselective α-Functionalization of Carbonyl Compounds Involving π-Extended Enolates. CHEM REC 2023; 23:e202300164. [PMID: 37350363 DOI: 10.1002/tcr.202300164] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 06/06/2023] [Indexed: 06/24/2023]
Abstract
Chiral Brønsted base (BB) catalyzed asymmetric transformations constitute an important tool for synthesis. A meaningful fraction of these transformations proceeds through transiently generated enolate intermediates, which display quite versatile reactivity against a variety of electrophiles. Some years ago, our group became interested in developing BB-catalyzed asymmetric reactions of enolizable carbonyl substrates that involve π-extended enolates in which, besides control of reaction diastereo and enantioselectivity, the site-selectivity control is an additional issue in most cases. In the examples covered in this account the opportunities deployed, and the challenges posed, by these methods are illustrated, with a focus on the generation of quaternary carbon stereocenters. In the way, new bifunctional BB catalysts as well as achiral templates were developed that may find further applications.
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Affiliation(s)
- Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018 San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018 San Sebastián, Spain
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4
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Vopálenská A, Dočekal V, Petrželová S, Císařová I, Veselý J. Access to Spirooxindole-Fused Cyclopentanes via a Stereoselective Organocascade Reaction Using Bifunctional Catalysis. J Org Chem 2023. [PMID: 36705518 DOI: 10.1021/acs.joc.2c02478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The present study reports an asymmetric organocascade reaction of oxindole-derived alkenes with 3-bromo-1-nitropropane efficiently catalyzed by the bifunctional catalyst. Spirooxindole-fused cyclopentanes were produced in moderate-to-good isolated yields (15-69%) with excellent stereochemical outcomes. The synthetic utility of the protocol was exemplified on a set of additional transformations of the corresponding spirooxindole compounds.
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Affiliation(s)
- Andrea Vopálenská
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43Prague 2, Czech Republic
| | - Vojtěch Dočekal
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43Prague 2, Czech Republic
| | - Simona Petrželová
- Department of Teaching and Didactics of Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43Prague 2, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43Prague 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43Prague 2, Czech Republic
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5
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Cui XY, Ye ZT, Wu HH, Ji CG, Zhou F, Zhou J. Au(I)-Catalyzed Formal Intermolecular Carbene Insertion into Vinylic C(sp 2)–H Bonds and Allylic C(sp 3)–H Bonds. ACS Catal 2023. [DOI: 10.1021/acscatal.2c05351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiao-Yuan Cui
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
| | - Zhong-Tian Ye
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
| | - Hai-Hong Wu
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
| | - Chang-Ge Ji
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
| | - Feng Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
| | - Jian Zhou
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, and Shanghai Key Laboratory of Green Chemistry and Chemical Process, East China Normal University, Shanghai 200062, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
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6
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McLeod DA, Thøgersen MK, Barløse CL, Skipper ML, Obregón EB, Jørgensen KA. Enantioselective (8+3) Cycloadditions by Activation of Donor–Acceptor Cyclopropanes Employing Chiral Brønsted Base Catalysis. Angew Chem Int Ed Engl 2022; 61:e202206096. [PMID: 35580010 PMCID: PMC9401081 DOI: 10.1002/anie.202206096] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Indexed: 12/18/2022]
Abstract
A novel enantioselective (8+3) cycloaddition between donor–acceptor cyclopropanes and heptafulvenoids catalysed by a chiral bifunctional Brønsted base is described. Importantly, the reaction, which leverages an anionic activation strategy, is divergent from prototypical Lewis‐acid activation protocols. A series of cyclopropylketones react with tropones affording the desired (8+3) cycloadducts in high yield and enantiomeric excess. For barbiturate substituted heptafulvenes, the (8+3) cycloaddition with cyclopropylketones proceeds in good yield, excellent diastereoselectivity and high enantiomeric excess. The experimental work is supported by DFT calculations, which indicate that the bifunctional organocatalyst activates both the donor–acceptor cyclopropane and tropone; the reaction proceeds in a step‐wise manner with the ring‐closure being the stereodetermining step.
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Affiliation(s)
- David A. McLeod
- Department of Chemistry Aarhus University 8000 Aarhus C Denmark
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7
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Asymmetric Phase Transfer Catalysed Michael Addition of γ-Butenolide and N-Boc-Pyrrolidone to 4-Nitro-5-styrylisoxazoles. Catalysts 2022. [DOI: 10.3390/catal12060634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/10/2022] Open
Abstract
Herein we report the addition of acidic γ-butenolide and N-Boc-pyrrolidone to 4-nitro-5-styrylisoxazoles, a popular class of cinnamic ester synthetic equivalent. The reactions proceeded under the catalysis of Cinchona-based phase-transfer catalysts. Functionalised γ-butenolides were obtained in good isolated yields and moderate enantioselectivity (up to 74% ee).
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8
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Guerrero-Corella A, Fraile A, Alemán J. Intramolecular Hydrogen-Bond Activation: Strategies, Benefits, and Influence in Catalysis. ACS ORGANIC & INORGANIC AU 2022; 2:197-204. [PMID: 35673681 PMCID: PMC9164241 DOI: 10.1021/acsorginorgau.1c00053] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/21/2022] [Accepted: 01/21/2022] [Indexed: 12/12/2022]
Abstract
![]()
The activation of
molecules through intramolecular hydrogen-bond
formation to promote chemical reactions appears as a suitable strategy
in organic synthesis, especially for the preparation of chiral compounds
under metal and organocatalytic conditions. The use of this interaction
has enabled reactivity enhancement of reagents, as well as stabilization
of the chemical species and enantiocontrol of the processes.
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Affiliation(s)
| | - Alberto Fraile
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - José Alemán
- Organic Chemistry Department, Módulo 1, Universidad Autónoma de Madrid, 28049 Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049 Madrid, Spain
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9
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McLeod DA, Thøgersen MK, Barløse CL, Skipper ML, Obregón EB, Jørgensen KA. Enantioselective (8+3) Cycloadditions by Activation of Donor–Acceptor Cyclopropanes Employing Chiral Brønsted Base Catalysis. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202206096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David A. McLeod
- Department of Chemistry Aarhus University 8000 Aarhus C Denmark
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10
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Hao MY, Huang MH, Gu XY, Zhang TS, Zhu XT, Hao WJ, Jiang B. Diastereoselective Generation of C 2-Azlactonized 2 H-Chromenes via Brønsted Acid-Catalyzed Oxo-Cyclization of Propargyl Alcohols. J Org Chem 2022; 87:1518-1525. [PMID: 35000383 DOI: 10.1021/acs.joc.1c02299] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
A new Brønsted acid-catalyzed oxo-cyclization of propargyl alcohols with azlactones to synthesize C2-azlactonized 2H-chromenes has been established that uses 1,1'-binaphthyl-2,2'-diyl hydrogen phosphate (BiNPO4H) as the catalyst and gives excellent diastereoselectivities (≥19:1 dr) in most cases. This protocol has a high compatibility with various substituents of substrates, offering a catalytic and useful entry to the fabrication of the synthetically important C2-functionalized 2H-chromene scaffold.
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Affiliation(s)
- Meng-Ying Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Min-Hua Huang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Xin-Yu Gu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Tian-Shu Zhang
- School of Materials and Chemical Engineering, Xuzhou University of Technology, Xuzhou 221018, P. R. China
| | - Xiao-Tong Zhu
- Department of Chemistry, Xuzhou Medical University, Xuzhou 221004, People's Republic of China
| | - Wen-Juan Hao
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Bo Jiang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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11
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Yin Q, Wen X, Chen Y, Gong X, Hu L. Phase-Transfer Catalyzed Asymmetric [4 + 1] Annulations for the Synthesis of Chiral 2,2-Disubstituted Tetrahydrothiophenes. Org Lett 2021; 23:7529-7534. [PMID: 34529440 DOI: 10.1021/acs.orglett.1c02744] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
An efficient catalytic asymmetric [4 + 1] reaction, which features the use of simple β-keto esters as one-carbon nucleophiles and 5-succinimidothio-pent-2-enoates as four-atom bielectrophiles, has been developed in the presence of a bifunctional chiral phase-transfer catalyst. The new annulation provides a distinct protocol to access the functionalized 2-acyl-2-carboxyl tetrahydrothiophenes bearing consecutive quaternary and tertiary carbon stereocenters in high diastereoselectivities and enantioselectivities. Moreover, the prepared products could be readily transformed into the chiral 2-alkyl-2-carboxyl tetrahydrothiophenes via two steps of debenzoylation and alkylation reactions.
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Affiliation(s)
- Qi Yin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xiaolu Wen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Yiwei Chen
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
| | - Xiangnan Gong
- Analytical and Testing Center, Chongqing University, Chongqing 401331, China
| | - Lin Hu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug Research, School of Pharmaceutical Sciences, Chongqing University, Chongqing 401331, China
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12
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Jain A, Rana NK. Review on Asymmetric Catalysis Employing 5
H‐
Oxazol‐4‐Ones as α‐Hydroxy Carboxylic Acid Surrogates. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Anshul Jain
- Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur Rajasthan 342037 India
| | - Nirmal K. Rana
- Department of Chemistry Indian Institute of Technology Jodhpur Jodhpur Rajasthan 342037 India
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13
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Zhang N, Zhang C, Hu X, Xie X, Liu Y. Nickel-Catalyzed C(sp 3)-H Functionalization of Benzyl Nitriles: Direct Michael Addition to Terminal Vinyl Ketones. Org Lett 2021; 23:6004-6009. [PMID: 34236193 DOI: 10.1021/acs.orglett.1c02074] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient nickel(0)-catalyzed addition of benzyl nitriles to terminal vinyl ketones via C(sp3)-H functionalization has been developed. The reaction provides a novel and efficient protocol for the synthesis of α-functionalized benzyl nitriles with a wide range of structural diversity under mild reaction conditions while obviating the use of a strong base. The work might be potentially useful toward the development of an enantioselective variant using chiral nitrogen ligands.
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Affiliation(s)
- Ninghui Zhang
- Department of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Chunli Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Xiaoping Hu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Xin Xie
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
| | - Yuanhong Liu
- Department of Chemistry, Zhengzhou University, 100 Science Avenue, Zhengzhou, Henan 450001, People's Republic of China.,State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, People's Republic of China
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14
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Cui XY, Zhao YL, Chen YM, Dong SZ, Zhou F, Wu HH, Zhou J. Au-Catalyzed Formal Allylation of Diazo(thio)oxindoles: Application to Tandem Asymmetric Synthesis of Quaternary Stereocenters. Org Lett 2021; 23:4864-4869. [PMID: 34080874 DOI: 10.1021/acs.orglett.1c01399] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We report an efficient Au(I)-catalyzed formal allylation of diazo(thio)oxindoles using allyltrimethylsilane to give 3-allyl (thio)oxindoles, which are difficult to access by using traditional alkylation methods under basic conditions. The approach enables a highly stereoselective synthesis of quaternary (thio)oxindoles via a formal allylation-asymmetric Michael addition sequence. These adducts are versatile synthons for spirocyclic (thio)oxindoles. Initial biological studies reveal that chiral thiooxindoles show promising antiproliferation activity that is better than that of the corresponding oxindoles.
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Affiliation(s)
| | - Yu-Lei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | | | | | | | | | - Jian Zhou
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Shanghai 200032, China
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15
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Access to enantioenriched compounds bearing challenging tetrasubstituted stereocenters via kinetic resolution of auxiliary adjacent alcohols. Nat Commun 2021; 12:3735. [PMID: 34145256 PMCID: PMC8213810 DOI: 10.1038/s41467-021-23990-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 05/21/2021] [Indexed: 11/28/2022] Open
Abstract
Contemporary asymmetric catalysis faces huge challenges when prochiral substrates bear electronically and sterically unbiased substituents and when substrates show low reactivities. One of the inherent limitations of chiral catalysts and ligands is their incapability in recognizing prochiral substrates bearing similar groups. This has rendered many enantiopure substances bearing several similar substituents inaccessible. Here we report the rationale, scope, and applications of the strategy of kinetic resolution of auxiliary adjacent alcohols (KRA*) that can be used to solve the above troubles. Using this method, a large variety of optically enriched tertiary alcohols, epoxides, esters, ketones, hydroxy ketones, epoxy ketones, β-ketoesters, and tetrasubstituted methane analogs with two, three, and four spatially and electronically similar groups can be readily obtained (totally 96 examples). At the current stage, the strategy serves as the optimal solution that can complement the inability caused by direct asymmetric catalysis in getting chiral molecules with challenging fully substituted stereocenters. A large number of enantiopure substances, such as those with tetrasubstituted carbon centres bearing several similar substituents, are inaccessible due to the incapability of chiral catalysts/ligands to recognize those substrates. Here, the authors develop kinetic resolution of auxiliary adjacent alcohols (KRA*) strategy to access various optically enriched compounds with two, three or four spatially and electronically similar groups.
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16
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Kong XK, Xiong ZM, Zhi X, Meng XL, Zhao JF, Chen W, Zhang H. Lewis acid mediated cyclization: synthesis of 2 spirocyclohexylindolines. Org Biomol Chem 2021; 19:4043-4047. [PMID: 33885129 DOI: 10.1039/d1ob00293g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report the synthesis of 2-spirocyclohexylindolines based on a Lewis acid mediated cyclization. This diastereoselective procedure provides the target structures in a straightforward way via dual activation.
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Affiliation(s)
- Xiang-Kai Kong
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Zhi-Min Xiong
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Xiang Zhi
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Xue-Ling Meng
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Jing-Feng Zhao
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Wen Chen
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
| | - Hongbin Zhang
- Key Laboratory of Medicinal Chemistry for Natural Resource, Ministry of Education, Yunnan Provincial Center for Research and Development of Natural Products, School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, P. R. China.
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17
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Zhao JQ, Zhou S, Wang ZH, You Y, Chen S, Liu XL, Zhou MQ, Yuan WC. Catalytic asymmetric dearomative [4 + 2] annulation of 2-nitrobenzofurans and 5 H-thiazol-4-ones: stereoselective construction of dihydrobenzofuran-bridged polycyclic skeletons. Org Chem Front 2021. [DOI: 10.1039/d1qo01061a] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An organocatalytic asymmetric dearomative [4 + 2] annulation of 2-nitrobenzofurans and 5H-thiazol-4-ones is developed for the construction of dihydrobenzofuran-bridged polycyclic skeletons with good results.
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Affiliation(s)
- Jian-Qiang Zhao
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Shun Zhou
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Zhen-Hua Wang
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Yong You
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Shuang Chen
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, China
| | - Xiong-Li Liu
- Guizhou Engineering Center for Innovative Traditional Chinese Medicine and Ethnic Medicine, Guizhou University, Guiyang, Guizhou 550025, China
| | - Ming-Qiang Zhou
- National Engineering Research Center of Chiral Drugs, Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, 610041, China
| | - Wei-Cheng Yuan
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
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18
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Abstract
Arylidene-Δ2-pyrrolin-4-ones undergo organocatalyzed double spirocyclization with 3-isothiocianato oxindoles in a domino 1,4/1,2-addition sequence. The products contain three contiguous stereocenters (ee up to 98%, dr up to 99:1, 12 examples). The absolute configuration of the major diastereomer was determined by single crystal X-ray analysis. Along with heterocyclic Michael acceptors based on oxazolone, isoxazolone, thiazolidinone, pyrazolone, and pyrimidinedione, the reported results display the applicability of unsaturated Δ2-pyrrolin-4-ones (pyrrolones) for the organocatalyzed construction of 3D-rich pyrrolone-containing heterocycles.
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19
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Wang Z, Huang A, Fang F, Li P, Liu G, Li W. Non-hydrogen bond catalyst-mediated diastereoselective conjugate additions of 5H-oxazol-4-ones to o-hydroxyphenyl-substituted p-quinone methides. Org Biomol Chem 2020; 18:6807-6811. [PMID: 32857073 DOI: 10.1039/d0ob01558j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient DBU-catalyzed conjugate addition of 5H-oxazol-4-ones to o-hydroxyphenyl-substituted p-quinone methides has been developed, affording the valuable diarylmethanes in high yields with excellent diastereoselectivity. This strategy demonstrates a robust access to a wide range of diarylmethane derivatives possessing biologically significant o-hydroxyphenol and p-hydroxyphenol moieties under mild reaction conditions.
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Affiliation(s)
- Ziyang Wang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, China.
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20
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Li F, Zhang C, Cheng Y, Jia Q, Li W, Liu K, Li P. Enantioselective Construction of Vicinal Sulfur‐functionalized Quaternary and Tertiary Stereocenters via Organocatalytic Michael Addition of 5
H
‐Thiazol‐4‐ones to 1‐Azadienes. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000272] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Fushuai Li
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Chen Zhang
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Yuyu Cheng
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
| | - Qianfa Jia
- Chongqing Key Laboratory of Inorganic Special Functional MaterialsCollege of Chemistry and Chemical EngineeringYangtze Normal University Fuling Chongqing 408100 China
| | - Wenjun Li
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Kun Liu
- Department of Medicinal ChemistrySchool of PharmacyQingdao University Qingdao Shandong 266021 China
| | - Pengfei Li
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology (SUSTech) Shenzhen Guangdong 518055 China
- Shenzhen Key Laboratory of Marine Archaea Geo-Omics SUSTech
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21
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Huang A, Guo X, Li P, Li W. Recent Advances in Catalytic Asymmetric Reactions of Thiazolones, Rhodanines and Their Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000592] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Anqi Huang
- Department of Medicinal ChemistrySchool of PharmacyQingdao University 38 Dengzhou Road Qingdao Shandong 266021 People's Republic of China
| | - Xing Guo
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
| | - Pengfei Li
- Department of ChemistryCollege of ScienceSouthern University of Science and Technology 1088 Xueyuan Blvd., Nanshan District Shenzhen Guangdong 518055 People's Republic of China
- Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology
| | - Wenjun Li
- Department of Medicinal ChemistrySchool of PharmacyQingdao University 38 Dengzhou Road Qingdao Shandong 266021 People's Republic of China
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22
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Ye X, Pan Y, Chen Y, Yang X. Enantioselective Construction of Sulfur‐Containing Tetrasubstituted Stereocenters via Asymmetric Functionalizations of α‐Sulfanyl Cyclic Ketones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xueqian Ye
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Yongkai Pan
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Yunrong Chen
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Xiaoyu Yang
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
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23
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Formánek B, Tauchman J, Císařová I, Veselý J. Access to Spirocyclic Benzothiophenones with Multiple Stereocenters via an Organocatalytic Cascade Reaction. J Org Chem 2020; 85:8510-8521. [DOI: 10.1021/acs.joc.0c00882] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bedřich Formánek
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jiří Tauchman
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
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24
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Wang J, Zhong L, Tang S, Liu Y, Ding S, Li L, Zhao H, Chen C, Shang Y. Palladium-Catalyzed Divergent Imidoylative Cyclization of Multifunctionalized Isocyanides: Tunable Access to Oxazol-5(4H)-ones and Cyclic Ketoimines. J Org Chem 2020; 85:7297-7308. [DOI: 10.1021/acs.joc.0c00672] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jian Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Ling Zhong
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Shi Tang
- Department of Pharmacy, School of Life and Pharmaceutical Sciences, Hainan University, Haikou 570228, P. R. China
| | - Yuan Liu
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Shumin Ding
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Lianjie Li
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Haixia Zhao
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Chen Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
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25
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He Y, Liu Y, Liu Y, Kou X, Li Q, Li J, Jiang H, Leng H, Peng C, Li J. Diastereodivergent Formal 1,3‐Dipolar Cycloaddition of 5‐alkenyl thiazolones to Access Stereochemically Diverse Pyrrolidinyl Spirooxindoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901541] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yu He
- School of Life Science and EngineeringSouthwest Jiaotong University Chengdu 610031 People's Republic of China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Yue Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Yu Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Xin‐Xin Kou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Qing‐Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Jia‐Hong Li
- School of Life Science and EngineeringSouthwest Jiaotong University Chengdu 610031 People's Republic of China
| | - He‐Zhong Jiang
- School of Life Science and EngineeringSouthwest Jiaotong University Chengdu 610031 People's Republic of China
| | - Hai‐Jun Leng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 People's Republic of China
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
| | - Cheng Peng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of PharmacyChengdu University of Traditional Chinese Medicine Chengdu 611137 People's Republic of China
| | - Jun‐Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University Chengdu 610052 People's Republic of China
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26
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Zhang C, Wang Q, Tian S, Zhang J, Li J, Zhou L, Lu J. Palladium-catalyzed regioselective synthesis of B(4,5)- or B(4)-substituted o-carboranes containing α,β-unsaturated carbonyls. Org Biomol Chem 2020; 18:4723-4727. [DOI: 10.1039/d0ob00698j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
B(4,5)- or B(4)-Substituted o-carboranes containing α,β-unsaturated carbonyls are regioselectively synthesized through a Pd-catalyzed decarboxylation cross coupling reaction.
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Affiliation(s)
- Chuyi Zhang
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Qian Wang
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
| | - Song Tian
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
| | - Jianwei Zhang
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Jiaoyi Li
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule of Ministry of Education
- Department of Chemistry & Materials Science
- National Demonstration Center for Experimental Chemistry Education
- Northwest University
- Xi'an
| | - Jian Lu
- State Key Laboratory of Fluorine & Nitrogen Chemicals
- Xi'an Modern Chemistry Research Institute
- Xi'an 710065
- China
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27
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Noda H, Shibasaki M. Recent Advances in the Catalytic Asymmetric Synthesis of β
2
‐ and β
2,2
‐Amino Acids. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901596] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hidetoshi Noda
- Institute of Microbial Chemistry (BIKAKEN) 3–14–23 Kamiosaki, Shinagawa‐ku, Tokyo 141–0021 Tokyo Japan
| | - Masakatsu Shibasaki
- Institute of Microbial Chemistry (BIKAKEN) 3–14–23 Kamiosaki, Shinagawa‐ku, Tokyo 141–0021 Tokyo Japan
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28
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Ferreira RAA, Pauli I, Sampaio TS, de Souza ML, Ferreira LLG, Magalhães LG, Rezende CDO, Ferreira RS, Krogh R, Dias LC, Andricopulo AD. Structure-Based and Molecular Modeling Studies for the Discovery of Cyclic Imides as Reversible Cruzain Inhibitors With Potent Anti- Trypanosoma cruzi Activity. Front Chem 2019; 7:798. [PMID: 31824926 PMCID: PMC6886403 DOI: 10.3389/fchem.2019.00798] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 11/05/2019] [Indexed: 11/13/2022] Open
Abstract
Chagas disease causes ~10,000 deaths each year, mainly in Latin America, where it is endemic. The currently available chemotherapeutic agents are ineffective in the chronic stage of the disease, and the lack of pharmaceutical innovation for Chagas disease highlights the urgent need for the development of new drugs. The enzyme cruzain, the main cysteine protease of Trypanosoma cruzi, has been explored as a validated molecular target for drug discovery. Herein, the design, molecular modeling studies, synthesis, and biological evaluation of cyclic imides as cruzain inhibitors are described. Starting with a micromolar-range cruzain inhibitor (3a, IC50 = 2.2 μM), this molecular optimization strategy resulted in the nanomolar-range inhibitor 10j (IC50 = 0.6 μM), which is highly active against T. cruzi intracellular amastigotes (IC50 = 1.0 μM). Moreover, most compounds were selective toward T. cruzi over human fibroblasts, which were used as host cells, and are less toxic to hepatic cells than the marketed drug benznidazole. This study enabled the discovery of novel chemical diversity and established robust structure-activity relationships to guide the design of optimized cruzain inhibitors as new trypanocidal agents.
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Affiliation(s)
| | - Ivani Pauli
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
| | - Thiago S Sampaio
- Instituto de Química, Universidade Estadual de Campinas, Campinas, Brazil
| | - Mariana L de Souza
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
| | - Leonardo L G Ferreira
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
| | - Luma G Magalhães
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
| | - Celso de O Rezende
- Instituto de Química, Universidade Estadual de Campinas, Campinas, Brazil
| | - Rafaela S Ferreira
- Departamento de Bioquímica e Imunologia, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Renata Krogh
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
| | - Luiz C Dias
- Instituto de Química, Universidade Estadual de Campinas, Campinas, Brazil
| | - Adriano D Andricopulo
- Laboratório de Química Medicinal e Computacional, Centro de Pesquisa e Inovação em Biodiversidade e Fármacos, Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, Brazil
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29
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Shu C, Liu H, Slawin AMZ, Carpenter-Warren C, Smith AD. Isothiourea-catalysed enantioselective Michael addition of N-heterocyclic pronucleophiles to α,β-unsaturated aryl esters. Chem Sci 2019; 11:241-247. [PMID: 34040717 PMCID: PMC8133005 DOI: 10.1039/c9sc04303a] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The isothiourea-catalysed enantioselective Michael addition of 3-aryloxindole and 4-substituted-dihydropyrazol-3-one pronucleophiles to α,β-unsaturated p-nitrophenyl esters is reported. This process generates products containing two contiguous stereocentres, one quaternary, in good yields and excellent enantioselectivities (>30 examples, up to > 95 : 5 dr and 99 : 1 er). This protocol harnesses the multifunctional ability of p-nitrophenoxide to promote effective catalysis. In contrast to previous methodologies using tertiary amine Lewis bases, in which the pronucleophile was used as the solvent, this work allows bespoke pronucleophiles to be used in stoichiometric quantities. The isothiourea-catalysed enantioselective Michael addition of 3-aryloxindole and 4-substituted-dihydropyrazol-3-one pronucleophiles to α,β-unsaturated p-nitrophenyl esters is reported.![]()
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Affiliation(s)
- Chang Shu
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh, St Andrews Fife KY16 9ST UK
| | - Honglei Liu
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh, St Andrews Fife KY16 9ST UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh, St Andrews Fife KY16 9ST UK
| | - Cameron Carpenter-Warren
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh, St Andrews Fife KY16 9ST UK
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews North Haugh, St Andrews Fife KY16 9ST UK
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30
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Luan Y, Huang A, Cheng Y, Liu X, Li P, Li W. Organocatalytic Enantioselective Michael Addition of Oxazolones to 2‐Enoylpyridine
N
‐Oxides for Assembling of Pyridine
N
‐Oxides Featuring Vicinal Oxygen‐Containing Tetrasubstituted Stereocenters. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900684] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yipeng Luan
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Anqi Huang
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Yuyu Cheng
- Department of Chemistry and Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology, Shenzhen Guangdong 518055 People's Republic of China
| | - Xiaohong Liu
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
| | - Pengfei Li
- Department of Chemistry and Shenzhen Key Laboratory of Marine Archaea Geo-OmicsSouthern University of Science and Technology, Shenzhen Guangdong 518055 People's Republic of China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of PharmacyQingdao University, Qingdao Shandong 266021 People's Republic of China
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31
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Marra IFS, de Castro PP, Amarante GW. Recent Advances in Azlactone Transformations. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901076] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Isabella F. S. Marra
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Pedro P. de Castro
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
| | - Giovanni W. Amarante
- Chemistry Department; Federal University of Juiz de Fora; José Lourenço Kelmer, São Pedro Juiz de Fora Brazil
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32
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Sanz-Novo M, Alonso ER, León I, Alonso JL. The Shape of the Archetypical Oxocarbon Squaric Acid and Its Water Clusters. Chemistry 2019; 25:10748-10755. [PMID: 31283059 DOI: 10.1002/chem.201901916] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Indexed: 12/15/2022]
Abstract
Herein, a full structural description is presented for the archetypical supramolecular synthone squaric acid (3,4-dihydroxy-3-cyclobutene-1,2-dione), placed in the gas phase by laser ablation and characterized by chirped pulse Fourier transform microwave technique. Free from natural environmental disturbances, two different anti-anti and syn-anti planar forms and the corresponding water clusters have been revealed in a supersonic expansion. The substitution structure of the most stable anti-anti conformer has also been extracted from the analysis of the rotational spectra of the 13 C and 18 O isotopic species in their natural abundance. The interplay between inter- and intramolecular interactions involving hydroxy and carbonyl groups has been analyzed by QTAIM (quantum theory of atoms in molecules) methods for squaric acid and its water clusters to understand their chemical behavior and further rationalize their role in the stabilization of these molecular systems.
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Affiliation(s)
- Miguel Sanz-Novo
- Grupo de Espectroscopía Molecular (GEM), Edificio Quifima Laboratorios de EspectroscopíayBioespectroscopía, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo de Belén 5, 47011, Valladolid, Spain
| | - Elena R Alonso
- Grupo de Espectroscopía Molecular (GEM), Edificio Quifima Laboratorios de EspectroscopíayBioespectroscopía, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo de Belén 5, 47011, Valladolid, Spain
| | - Iker León
- Grupo de Espectroscopía Molecular (GEM), Edificio Quifima Laboratorios de EspectroscopíayBioespectroscopía, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo de Belén 5, 47011, Valladolid, Spain
| | - J L Alonso
- Grupo de Espectroscopía Molecular (GEM), Edificio Quifima Laboratorios de EspectroscopíayBioespectroscopía, Unidad Asociada CSIC, Parque Científico Uva, Universidad de Valladolid, Paseo de Belén 5, 47011, Valladolid, Spain
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33
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Lu B, Xin S, Zhu B, Chang J. Enantioselective Conjugate Addition‐Protonation of 5
H
‐Oxazol‐4‐ones and 5‐Methylene 1,3‐Oxazolidine‐2,4‐diones: 2,2'‐Biphenol‐Induced Diastereoselectivity Switch. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Bohua Lu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Shuang Xin
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Bo Zhu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, School of Chemistry and Chemical EngineeringHenan Normal University Xinxiang Henan 453007 China
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34
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Role of intramolecular hydrogen bonds and electron withdrawing groups in the acidity of aldimines and ketimines: a density functional theory study. Theor Chem Acc 2019. [DOI: 10.1007/s00214-019-2451-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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35
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Ma ZG, Wei JL, Lin JB, Wang GJ, Zhou J, Chen K, Fan CA, Zhang SY. Asymmetric Organocatalytic Synthesis of 2,3-Allenamides from Hydrogen-Bond-Stabilized Enynamides. Org Lett 2019; 21:2468-2472. [DOI: 10.1021/acs.orglett.9b00839] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-Gang Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jie-Lu Wei
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
- College of Chemistry & Pharmacy, Shaanxi Key Laboratory of Natural Products & Chemical Biology, Northwest A&F University, Yangling, Shaanxi 712100, P. R. China
| | - Jun-Bing Lin
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guan-Jun Wang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jia Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Kai Chen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chun-An Fan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Shu-Yu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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36
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Zhang P, Huang Q, Cheng Y, Li R, Li P, Li W. Remote Stereocontrolled Construction of Vicinal Axially Chiral Tetrasubstituted Allenes and Heteroatom-Functionalized Quaternary Carbon Stereocenters. Org Lett 2019; 21:503-507. [DOI: 10.1021/acs.orglett.8b03801] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pei Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, 266021, China
| | - Qiuhong Huang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, 266021, China
| | - Yuyu Cheng
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Rongshi Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, 266021, China
| | - Pengfei Li
- Department of Chemistry and Shenzhen Grubbs Institute, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao, 266021, China
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37
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Odanaka Y, Kanemitsu T, Iwasaki K, Mochizuki Y, Miyazaki M, Nagata K, Kato M, Itoh T. Asymmetric Michael addition of malonic diesters to acrylates by phase-transfer catalysis toward the construction of quaternary stereogenic α-carbons. Tetrahedron 2019. [DOI: 10.1016/j.tet.2018.11.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Lin W, Zhang C, Xu W, Cheng Y, Li P, Li W. Organocatalytic Asymmetric Michael Addition of Rhodanines to Azadienes for Assembling of Sulfur‐containing Tetrasubstituted Carbon Stereocenters. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801422] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Wei Lin
- Department of Medicinal Chemistry, School of PharmacyQingdao University Qingdao, Shandong 266021 People's Republic of China
| | - Chen Zhang
- Department of Medicinal Chemistry, School of PharmacyQingdao University Qingdao, Shandong 266021 People's Republic of China
| | - Wen Xu
- Department of Pharmacythe Affiliated Hospital of Qingdao University Qingdao, Shandong 266003 People's Republic of China
| | - Yuyu Cheng
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen, Guangdong 518055 People's Republic of China
| | - Pengfei Li
- Department of Chemistry and Shenzhen Grubbs InstituteSouthern University of Science and Technology Shenzhen, Guangdong 518055 People's Republic of China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of PharmacyQingdao University Qingdao, Shandong 266021 People's Republic of China
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39
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Fu Z, Deng N, Su S, Li H, Li R, Zhang X, Liu J, Niu D. Diastereo‐ and Enantioselective Propargylation of 5
H
‐Thiazol‐4‐ones and 5
H
‐Oxazol‐4‐ones as Enabled by Cu/Zn and Cu/Ti Catalysis. Angew Chem Int Ed Engl 2018; 57:15217-15221. [DOI: 10.1002/anie.201809391] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Zhengyan Fu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ning Deng
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Sheng‐Nan Su
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hongyang Li
- School of ScienceXihua University Chengdu 610039 China
| | - Ren‐Zhe Li
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
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40
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Martín-Sómer A, Arpa EM, Díaz-Tendero S, Alemán J. Intramolecular Hydrogen Bond Activation of Aza-Methylene Imines in Hydrogen Bond Bifunctional Catalysis - A Density Functional Theory Study. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801208] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ana Martín-Sómer
- Departamento de Química (Módulo 13); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
| | - Enrique M. Arpa
- Departamento de Química (Módulo 13); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
| | - Sergio Díaz-Tendero
- Departamento de Química (Módulo 13); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
- Institute for Advanced Research in Chemical Sciences (IAdChem); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
- Condensed Matter Physics Center (IFIMAC); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
| | - José Alemán
- Institute for Advanced Research in Chemical Sciences (IAdChem); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
- Organic Chemistry Deparment (modulo 1); Science Faculty; Universidad Autonoma de Madrid; 28049 Madrid Spain
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41
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Teegardin KA, Gotcher L, Weaver JD. Formation of Non-Natural α,α-Disubstituted Amino Esters via Catalytic Michael Addition. Org Lett 2018; 20:7239-7244. [PMID: 30387616 DOI: 10.1021/acs.orglett.8b03161] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The enolate monoanion of amino esters is explored, and the first catalytic Michael addition of α-amino esters is demonstrated. These studies indicate that the acidity of the αC-H is the primary factor determining reactivity. Thus, polyfluorophenylglycine amino esters yield novel α-amino esters in the presence of a catalytic amount of a guanidine-derived base and Michael acceptors. Reactivity requires an acidic N-H, which is accomplished using common protecting groups such as N-Bz, N-Boc, and N-Cbz. Calculations and labeling experiments provide insight into the governing principles in which a key C-to-N proton transfer occurs, resulting in an expansion of the scope to include a number of natural amino esters. The study culminates with a late-stage functionalization of peptidic γ-secretase inhibitor, DAPT.
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Affiliation(s)
- Kip A Teegardin
- Department of Chemistry , Oklahoma State University , Stillwater , Oklahoma 74078 , United States
| | - Lacey Gotcher
- Department of Chemistry , Oklahoma State University , Stillwater , Oklahoma 74078 , United States
| | - Jimmie D Weaver
- Department of Chemistry , Oklahoma State University , Stillwater , Oklahoma 74078 , United States
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42
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Fu Z, Deng N, Su S, Li H, Li R, Zhang X, Liu J, Niu D. Diastereo‐ and Enantioselective Propargylation of 5
H
‐Thiazol‐4‐ones and 5
H
‐Oxazol‐4‐ones as Enabled by Cu/Zn and Cu/Ti Catalysis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809391] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Zhengyan Fu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Ning Deng
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Sheng‐Nan Su
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Hongyang Li
- School of ScienceXihua University Chengdu 610039 China
| | - Ren‐Zhe Li
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- Department of EmergencyState Key Laboratory of Biotherapy and Cancer CenterWest China HospitalSchool of Chemical EngineeringSichuan University No. 17 Renmin Nan Road Chengdu 610041 China
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43
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Cui L, Wang Y, Fan Z, Li Z, Zhou Z. Organocatalytic Enantioselective α‐Amination of Thiazol‐4‐one‐5‐carboxylates with Azodicarboxylates. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800507] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Liying Cui
- Insitute and State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
| | - Youming Wang
- Insitute and State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
| | - Zhijin Fan
- Insitute and State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
| | - Zhengming Li
- Insitute and State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
| | - Zhenghong Zhou
- Insitute and State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 P. R. China
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44
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Wang TC, Han ZY, Wang PS, Lin HC, Luo SW, Gong LZ. Enantioselective Synthesis of 5-Alkylated Thiazolidinones via Palladium-Catalyzed Asymmetric Allylic C–H Alkylations of 1,4-Pentadienes with 5H-Thiazol-4-ones. Org Lett 2018; 20:4740-4744. [DOI: 10.1021/acs.orglett.8b01697] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tian-Ci Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Zhi-Yong Han
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Pu-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Hua-Chen Lin
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Shi-Wei Luo
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
| | - Liu-Zhu Gong
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, China
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45
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Xu H, Sha F, Wu XY. Highly enantioselective allylic alkylation of 5 H -oxazol-4-ones with Morita-Baylis-Hillman carbonates. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.06.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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46
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Zhang L, Yuan H, Lin W, Cheng Y, Li P, Li W. Catalyst-Controlled Diastereodivergent Construction of Vicinal Sulfur-Functionalized Quaternary and Tertiary Stereocenters. Org Lett 2018; 20:4970-4974. [DOI: 10.1021/acs.orglett.8b02088] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lili Zhang
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Huijun Yuan
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Wei Lin
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
| | - Yuyu Cheng
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Pengfei Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, P. R. China
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy, Qingdao University, Qingdao 266021, P. R. China
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47
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Misaki T, Tatsumi T, Okamoto T, Hayashi Y, Jin N, Sugimura T. Stereoconvergent 1,4-Addition Reaction of 5H-Oxazol-4-ones with E,Z Isomeric Mixture of Alkylidene β-Ketoesters Catalyzed by Chiral Guanidines. Chemistry 2018; 24:9778-9782. [PMID: 29741785 DOI: 10.1002/chem.201802271] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Indexed: 12/13/2022]
Abstract
A 1,4-addition reaction of 5H-oxazol-4-ones to alkylidene β-ketoesters, which was catalyzed by using chiral guanidines via a dynamic kinetic resolution process that involved geometric isomerization of the alkylidene β-ketoesters, was developed. This method allowed using E,Z isomeric mixture of various acyclic alkylidene β-ketoesters to obtain the products stereoselectively. The relation between the geometry and the stereoselectivity of products was investigated, and the derivatization of the products to the corresponding α-acyl-γ-lactone was performed.
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Affiliation(s)
- Tomonori Misaki
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
| | - Toshifumi Tatsumi
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
| | - Tatsumasa Okamoto
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
| | - Yusuke Hayashi
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
| | - Nari Jin
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
| | - Takashi Sugimura
- Graduate School of Material Science, University of Hyogo, 3-2-1 Kohto, Kamigori, Hyogo, 678-1297, Japan
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48
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Huang Q, Zhang L, Cheng Y, Li P, Li W. Enantioselective Construction of Vicinal Sulfur-containing Tetrasubstituted Stereocenters via Organocatalyzed Mannich-Type Addition of Rhodanines to Isatin Imines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800642] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Qiuhong Huang
- Department of Medicinal Chemistry, School of Pharmacy; Qingdao University, Qingdao; Shandong People's Republic of China 266021
| | - Lili Zhang
- Department of Medicinal Chemistry, School of Pharmacy; Qingdao University, Qingdao; Shandong People's Republic of China 266021
| | - Yuyu Cheng
- Department of Chemistry, Southern; University of Science and Technology, Shenzhen; Guangdong People's Republic of China 518055
| | - Pengfei Li
- Department of Chemistry, Southern; University of Science and Technology, Shenzhen; Guangdong People's Republic of China 518055
| | - Wenjun Li
- Department of Medicinal Chemistry, School of Pharmacy; Qingdao University, Qingdao; Shandong People's Republic of China 266021
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49
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Khanfar MA, Reiner D, Hagenow S, Stark H. Design, synthesis, and biological evaluation of novel oxadiazole- and thiazole-based histamine H 3R ligands. Bioorg Med Chem 2018; 26:4034-4046. [PMID: 29960729 DOI: 10.1016/j.bmc.2018.06.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/08/2018] [Accepted: 06/20/2018] [Indexed: 02/06/2023]
Abstract
Histamine H3 receptor (H3R) is largely expressed in the CNS and modulation of the H3R function can affect histamine synthesis and liberation, and modulate the release of many other neurotransmitters. Targeting H3R with antagonists/inverse agonists may have therapeutic applications in neurodegenerative disorders, gastrointestinal and inflammatory diseases. This prompted us to design and synthesize azole-based H3R ligands, i.e. having oxadiazole- or thiazole-based core structures. While ligands of oxadiazole scaffold were almost inactive, thiazole-based ligands were very potent and several exhibited binding affinities in a nanomolar concentration range. Ligands combining 4-cyanophenyl moiety as arbitrary region, para-xylene or piperidine carbamoyl linkers, and/or pyrrolidine or piperidine basic heads were found to be the most active within this series of thiazole-based H3R ligands. The most active ligands were in silico screened for ADMET properties and drug-likeness. They fulfilled Lipinski's and Veber's rules and exhibited potential activities for oral administration, blood-brain barrier penetration, low hepatotoxicity, combined with an overall good toxicity profile.
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Affiliation(s)
- Mohammad A Khanfar
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany; Faculty of Pharmacy, University of Jordan, P.O Box 13140, Amman 11942, Jordan; College of Pharmacy, Alfaisal University, Al Takhassusi Rd, Riyadh 11533, Saudi Arabia
| | - David Reiner
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Stefanie Hagenow
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany
| | - Holger Stark
- Heinrich Heine University Düsseldorf, Institute of Pharmaceutical and Medicinal Chemistry, Universitaetsstr. 1, 40225 Duesseldorf, Germany.
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50
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Izquierdo J, Etxabe J, Duñabeitia E, Landa A, Oiarbide M, Palomo C. Enantioselective Synthesis of 5,5-Disubstituted Hydantoins by Brønsted Base/H-Bond Catalyst Assisted Michael Reactions of a Design Template. Chemistry 2018; 24:7217-7227. [PMID: 29575281 DOI: 10.1002/chem.201800506] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Indexed: 01/25/2023]
Abstract
A new method for the enantioselective synthesis of 5,5-disubstituted (quaternary) hydantoins was developed on the basis of an organocatalytic Michael reaction approach involving the use of 2-benzylthio-3,5-dihydroimidazol-4-ones as key hydantoin surrogates. The method is general with respect to the substitution pattern at the hydantoin N1 (alkyl, aryl, acyl), N3 (aryl), and C5 (linear/branched alkyl, aryl) positions and affords essentially single diastereomeric products with enantioselectivities higher than 95 % ee in most cases. Among the bifunctional Brønsted base/H-bond catalysts examined, a known squaramide-tertiary amine catalyst and a newly prepared squaramide-tertiary amine catalyst provide the highest selectivity so far with either nitroolefins or vinyl ketones as the acceptor components. Kinetic measurements support a first-order rate dependence on both reaction partners, the donor template and the Michael acceptor, whereas competitive 1 H NMR spectroscopy experiments reveal the high ability of the template for catalyst binding.
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Affiliation(s)
- Joseba Izquierdo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Julen Etxabe
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Eider Duñabeitia
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Aitor Landa
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Mikel Oiarbide
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
| | - Claudio Palomo
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, Manuel Lardizabal 3, 20018, San Sebastián, Spain
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