1
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Keasler KT, Zick ME, Stacy EE, Kim J, Lee JH, Aeindartehran L, Runčevski T, Milner PJ. Handling fluorinated gases as solid reagents using metal-organic frameworks. Science 2023; 381:1455-1461. [PMID: 37769097 PMCID: PMC10799685 DOI: 10.1126/science.adg8835] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 08/24/2023] [Indexed: 09/30/2023]
Abstract
Fluorine is an increasingly common substituent in pharmaceuticals and agrochemicals because it improves the bioavailability and metabolic stability of organic molecules. Fluorinated gases represent intuitive building blocks for the late-stage installation of fluorinated groups, but they are generally overlooked because they require the use of specialized equipment. We report a general strategy for handling fluorinated gases as benchtop-stable solid reagents using metal-organic frameworks (MOFs). Gas-MOF reagents are prepared on gram-scale and used to facilitate fluorovinylation and fluoroalkylation reactions. Encapsulation of gas-MOF reagents within wax enables stable storage on the benchtop and controlled release into solution upon sonication, which represents a safer alternative to handling the gas directly. Furthermore, our approach enables high-throughput reaction development with these gases.
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Affiliation(s)
- Kaitlyn T. Keasler
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Mary E. Zick
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Emily E. Stacy
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Jaehwan Kim
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
| | - Jung-Hoon Lee
- Computational Science Research Center, Korea Institute of Science and Technology (KIST); Seoul 02792, Republic of Korea
| | - Lida Aeindartehran
- Department of Chemistry, Southern Methodist University; Dallas, Texas 75275, United States
| | - Tomče Runčevski
- Department of Chemistry, Southern Methodist University; Dallas, Texas 75275, United States
| | - Phillip J. Milner
- Department of Chemistry and Chemical Biology, Cornell University; Ithaca, New York 14850, United States
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2
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Chen J, Liu S, Su S, Fan R, Zhang R, Meng W, Tan J. Sulfonium-based precise alkyl transposition reactions. SCIENCE ADVANCES 2023; 9:eadi1370. [PMID: 37713480 PMCID: PMC10881050 DOI: 10.1126/sciadv.adi1370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Accepted: 08/14/2023] [Indexed: 09/17/2023]
Abstract
S-adenosyl-L-methionine (SAM), a sulfonium-based cofactor, plays an important role in numerous biological processes as methyl donor. Inspired by the function of sulfonium motif in this nature's synthetic toolkit, we here present an aryne-activation strategy that the sulfonium intermediates in situ generated from thioethers display unique reactivity toward alkyl group transposition. Experimental and theoretical studies indicate that the reaction occurs in an intermolecular fashion where the TfO--incorporated [K(18-crown-6)] complex acts as a key promoter for this thermodynamically favored process. Next, a series of robust, easy-to-prepare sulfonium salts are designed and developed as electrophilic alkylation reagents accordingly. Both systems feature for broad scope, excellent selectivity, and simple operation. Moreover, we highlight the synthetic value through molecular editing and late-stage modification of complex scaffolds or even active pharmaceutical ingredients.
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Affiliation(s)
- Jian Chen
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shilu Liu
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Shuaisong Su
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Rong Fan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Ruirui Zhang
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
| | - Wei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiajing Tan
- Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology (BUCT), Beijing 100029, China
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3
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Xu T, He Q, Fan R. Synthesis of C7-Functionalized Indoles through an Aromaticity Destruction-Reconstruction Process. Org Lett 2022; 24:2665-2669. [PMID: 35377659 DOI: 10.1021/acs.orglett.2c00733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A process for the synthesis of C7-functionalized indoles using para-substituted 2-alkynylanilines as starting materials was reported. The process involves a dearomatization, an 1,2-addition by organic lithium or Grignard reagents, an aromatization-driven allylic rearrangement, and a cyclization. A variety of groups including alkyl, aryl, alkenyl, or alkynyl groups were selectively installed at the C7 site of indoles leading to the formation of 2,5,7-trisubstituted indoles.
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Affiliation(s)
- Tingxuan Xu
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Qiuqin He
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
| | - Renhua Fan
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai 200438, China
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4
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Boujdi K, El Brahmi N, Graton J, Dubreuil D, Collet S, Mathé-Allainmat M, Akssira M, Lebreton J, El Kazzouli S. A regioselective C7 bromination and C7 palladium-catalyzed Suzuki-Miyaura cross-coupling arylation of 4-substituted NH-free indazoles. RSC Adv 2021; 11:7107-7114. [PMID: 35423195 PMCID: PMC8694914 DOI: 10.1039/d0ra08598g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 02/01/2021] [Indexed: 11/21/2022] Open
Abstract
A direct and efficient regioselective C7-bromination of 4-substituted 1H-indazole has been achieved. Subsequently, a successful palladium-mediated Suzuki–Miyaura reaction of C7-bromo-4-substituted-1H-indazoles with boronic acids has been performed under optimized reaction conditions. A series of new C7 arylated 4-substituted 1H-indazoles was obtained in moderate to good yields. A regioselective C7-bromination of 4-substituted 1H-indazoles followed by a palladium-catalyzed Suzuki–Miyaura reaction with boronic acids is described.![]()
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Affiliation(s)
- Khalid Boujdi
- Euromed Research Center, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF) Route de Meknes 30000 Fez Morocco .,Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France.,Faculty of Sciences and Technologies Mohammedia, University Hassan 2, URAC 22 FSTM University Hassan II - Casablanca BP 146 28800 Mohammedia Morocco
| | - Nabil El Brahmi
- Euromed Research Center, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF) Route de Meknes 30000 Fez Morocco
| | - Jérôme Graton
- Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Didier Dubreuil
- Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Sylvain Collet
- Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Monique Mathé-Allainmat
- Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Mohamed Akssira
- Faculty of Sciences and Technologies Mohammedia, University Hassan 2, URAC 22 FSTM University Hassan II - Casablanca BP 146 28800 Mohammedia Morocco
| | - Jacques Lebreton
- Laboratoire CEISAM-UMR 6230, Université de Nantes, CNRS, Faculté des Sciences et des Techniques 2 rue de la Houssinière, BP 92208 44322 Nantes Cedex 3 France
| | - Saïd El Kazzouli
- Euromed Research Center, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF) Route de Meknes 30000 Fez Morocco
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5
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Jismy B, Guillaumet G, Akssira M, Tikad A, Abarbri M. Efficient microwave-assisted Suzuki–Miyaura cross-coupling reaction of 3-bromo pyrazolo[1,5- a]pyrimidin-5(4 H)-one: towards a new access to 3,5-diarylated 7-(trifluoromethyl)pyrazolo[1,5- a]pyrimidine derivatives. RSC Adv 2021; 11:1287-1302. [PMID: 35747396 PMCID: PMC9134006 DOI: 10.1039/d0ra07959f] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/06/2020] [Indexed: 12/24/2022] Open
Abstract
A convenient and efficient synthetic route to C3-arylated 7-trifluoromethylpyrazolo[1,5-a]pyrimidin-5-one derivatives has been reported starting from 3-bromo-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-5-one through a Suzuki–Miyaura cross-coupling reaction. The arylation (heteroarylation) strategy can be performed using a wide variety of aryl and heteroaryl boronic acids and requiring a tandem catalyst XPhosPdG2/XPhos to avoid the debromination reaction. These optimized conditions were successfully extended to the synthesis of 7-, 8- and 9-arylated pyrimido[1,2-b]indazol-2-ones from their corresponding brominated starting materials. Furthermore, the second C-5 arylation of C3-arylated pyrazolo[1,5-a]pyrimidin-5-ones was achieved under standard Suzuki–Miyaura cross-coupling conditions, after activating the C–O bond of the lactam function with PyBroP, giving access to a small library of 3,5-diarylated 7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidines in good to excellent yields. The interest of this approach has been highlighted by the synthesis of a known anti-inflammatory agent. Additionally, a preliminary biological evaluation has revealed that a number of derivatives display micromolar IC50 values against monoamine oxidase B, an important target in the field of neurodegenerative disorders. A convenient and efficient synthetic route to C3-arylated 7-trifluoromethylpyrazolo[1,5-a]pyrimidin-5-one derivatives has been reported starting from 3-bromo-7-(trifluoromethyl)pyrazolo[1,5-a]pyrimidin-5-one through a Suzuki–Miyaura cross-coupling reaction.![]()
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Affiliation(s)
- Badr Jismy
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E). EA 6299
- Faculté des Sciences
- 37200 Tours
- France
| | - Gérald Guillaumet
- Institut de Chimie Organique et Analytique (ICOA)
- Université d'Orléans
- UMR CNRS 7311
- France
| | - Mohamed Akssira
- Laboratoire de Chimie Physique et de Chimie Bioorganique
- URAC 22
- 28800 Mohammedia
- Morocco
| | - Abdellatif Tikad
- Laboratoire de Chimie Moléculaire et Substances Naturelles
- Faculté des Sciences
- Département de Chimie
- Université Moulay Ismail
- Meknès 50050
| | - Mohamed Abarbri
- Laboratoire de Physico-Chimie des Matériaux et des Electrolytes pour l'Energie (PCM2E). EA 6299
- Faculté des Sciences
- 37200 Tours
- France
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6
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Jeong H, Han N, Hwang DW, Ko HM. B(C 6F 5) 3-Catalyzed Highly Chemoselective Reduction of Isatins: Synthesis of Indolin-3-ones and Indolines. Org Lett 2020; 22:8150-8155. [PMID: 33021380 DOI: 10.1021/acs.orglett.0c03150] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A chemo- and site-selective reduction reaction of isatin derivatives using catalyst B(C6F5)3 and hydrosilanes is described. This transformation is operationally simple, proceeds under mild conditions, and is resistant to various functional groups. Thus, this efficient reaction using a combination of B(C6F5)3 and BnMe2SiH or B(C6F5)3 and Et2SiH2 could potentially be utilized to produce various indolin-3-ones and indolines, without the need for multistep procedures and metal catalysis conditions.
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Affiliation(s)
- Hyojin Jeong
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea
| | - Nara Han
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea
| | - Dong Wook Hwang
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea
| | - Haye Min Ko
- Department of Chemistry, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea.,Wonkwang Institute of Materials Science and Technology, Wonkwang University, 460 Iksandae-ro, Iksan, Jeonbuk 54538, Republic of Korea
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7
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Gulledge Z, Tedder ML, Lyons KR, Carrick JD. Synthesis of Tridentate [1,2,4] Triazinyl-Pyridin-2-yl Indole Lewis Basic Complexants via Pd-Catalyzed Suzuki-Miyaura Cross-Coupling. ACS OMEGA 2019; 4:18855-18866. [PMID: 31737847 PMCID: PMC6854830 DOI: 10.1021/acsomega.9b02891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
Full closure of the nuclear fuel cycle is predicated, in part, on defining efficient separations processes for the effective speciation of the neutron-absorbing lanthanides from the minor actinides post-PUREX. Pursuant to the aforementioned, a class of tridentate, Lewis basic procomplexants have been prepared leveraging a Pd-catalyzed Suzuki-Miyaura cross-coupling between 6-bromo-[1,2,4]-triazinylpyridine derivatives and various protected indole-boronic acids to afford functionalized 2-[6-(5,6-diphenyl-[1,2,4]triazin-3-yl)-pyridin-2-yl]-1H-indoles. A highly active catalyst/ligand system with low loadings was employed rapidly affording 26 examples in yields as high as 85%. Method optimization, substrate and indole scope, comparative analysis between coupling reagents, and a scale-up experiment are reported.
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8
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Schönemann W, Cramer J, Mühlethaler T, Fiege B, Silbermann M, Rabbani S, Dätwyler P, Zihlmann P, Jakob RP, Sager CP, Smieško M, Schwardt O, Maier T, Ernst B. Improvement of Aglycone π-Stacking Yields Nanomolar to Sub-nanomolar FimH Antagonists. ChemMedChem 2019; 14:749-757. [PMID: 30710416 DOI: 10.1002/cmdc.201900051] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Indexed: 11/08/2022]
Abstract
Antimicrobial resistance has become a serious concern for the treatment of urinary tract infections. In this context, an anti-adhesive approach targeting FimH, a bacterial lectin enabling the attachment of E. coli to host cells, has attracted considerable interest. FimH can adopt a low/medium-affinity state in the absence and a high-affinity state in the presence of shear forces. Until recently, mostly the high-affinity state has been investigated, despite the fact that a therapeutic antagonist should bind predominantly to the low-affinity state. In this communication, we demonstrate that fluorination of biphenyl α-d-mannosides leads to compounds with perfect π-π stacking interactions with the tyrosine gate of FimH, yielding low nanomolar to sub-nanomolar KD values for the low- and high-affinity states, respectively. The face-to-face alignment of the perfluorinated biphenyl group of FimH ligands and Tyr48 was confirmed by crystal structures as well as 1 H,15 N-HSQC NMR analysis. Finally, fluorination improves pharmacokinetic parameters predictive for oral availability.
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Affiliation(s)
- Wojciech Schönemann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Jonathan Cramer
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Tobias Mühlethaler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Brigitte Fiege
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Marleen Silbermann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Said Rabbani
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Philipp Dätwyler
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Pascal Zihlmann
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Roman P Jakob
- Department Biozentrum, Focal Area Structural Biology, University of Basel, Klingelbergstrasse 70, 4056, Basel, Switzerland
| | - Christoph P Sager
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Martin Smieško
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Oliver Schwardt
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
| | - Timm Maier
- Department Biozentrum, Focal Area Structural Biology, University of Basel, Klingelbergstrasse 70, 4056, Basel, Switzerland
| | - Beat Ernst
- Department of Pharmaceutical Sciences, University of Basel, Klingelbergstrasse 50, 4056, Basel, Switzerland
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9
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Sakthivel S, Balamurugan R. Annulation of a Highly Functionalized Diazo Building Block with Indoles under Sc(OTf)3/Rh2(OAc)4 Multicatalysis through Michael Addition/Cyclization Sequence. J Org Chem 2018; 83:12171-12183. [DOI: 10.1021/acs.joc.8b02127] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Shanmugam Sakthivel
- School of Chemistry, University of Hyderabad, Gachibowli, Hyderabad 500046, India
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10
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Kanemoto K, Yoshida S, Hosoya T. Modified Conditions for Copper-catalyzed ipso-Thiolation of Arylboronic Acid Esters with Thiosulfonates. CHEM LETT 2018. [DOI: 10.1246/cl.170907] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Kazuya Kanemoto
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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11
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Tomanová M, Jedinák L, Košař J, Kvapil L, Hradil P, Cankař P. Synthesis of 4-substituted pyrazole-3,5-diamines via Suzuki-Miyaura coupling and iron-catalyzed reduction. Org Biomol Chem 2017; 15:10200-10211. [PMID: 29177274 DOI: 10.1039/c7ob02373a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A general and efficient synthesis of 4-substituted-1H-pyrazole-3,5-diamines was developed to access derivatives with an aryl, heteroaryl, or styryl group, which are otherwise relatively difficult to prepare. The first step is based on the Suzuki-Miyaura cross-coupling reaction utilizing the XPhos Pd G2 precatalyst. The coupling reactions of 4-bromo-3,5-dinitro-1H-pyrazole with the electron-rich/deficient or sterically demanding boronic acids enabled the production of the corresponding dinitropyrazoles. The subsequent iron-catalyzed reduction of both nitro groups with hydrazine hydrate accomplished the synthesis. The additional demethylation of the 4-methoxystyryl derivative allowed the production of the carboanalog of CAN508 reported as a selective CDK9 inhibitor.
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Affiliation(s)
- Monika Tomanová
- Institute of Molecular and Translation Medicine, Faculty of Medicine, Palacký University, Hněvotínská 5, 77900 Olomouc, Czech Republic
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12
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Perato S, Large B, Lu Q, Gaucher A, Prim D. Pyridylmethylamine-Palladium Catalytic Systems: A Selective Alternative in the C−H Arylation of Indole. ChemCatChem 2017. [DOI: 10.1002/cctc.201601275] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Serge Perato
- University of Versailles St. Quentin; Institut Lavoisier de Versailles, UMR CNRS 8180; 45, Avenue des Etats-Unis 78035 Versailles France
| | - Benjamin Large
- University of Versailles St. Quentin; Institut Lavoisier de Versailles, UMR CNRS 8180; 45, Avenue des Etats-Unis 78035 Versailles France
| | - Qiao Lu
- University of Versailles St. Quentin; Institut Lavoisier de Versailles, UMR CNRS 8180; 45, Avenue des Etats-Unis 78035 Versailles France
| | - Anne Gaucher
- University of Versailles St. Quentin; Institut Lavoisier de Versailles, UMR CNRS 8180; 45, Avenue des Etats-Unis 78035 Versailles France
| | - Damien Prim
- University of Versailles St. Quentin; Institut Lavoisier de Versailles, UMR CNRS 8180; 45, Avenue des Etats-Unis 78035 Versailles France
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13
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Schönemann W, Kleeb S, Dätwyler P, Schwardt O, Ernst B. Prodruggability of carbohydrates — oral FimH antagonists. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0582] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The bacterial lectin FimH is a promising therapeutic target for the nonantibiotic prevention and treatment of urinary tract infections. In this communication, an ester prodrug approach is described to achieve oral bioavailability for FimH antagonists. By introducing short-chain acyl promoieties at the C-6 position of a biphenyl α-d-mannopyranoside, prodrugs with an excellent absorption potential were obtained. The human carboxylesterase 2 was identified as a main enzyme mediating rapid bioconversion to the active principle. Despite their propensity to hydrolysis within the enterocytes during absorption, these ester prodrugs present a considerable progress in the development of orally available FimH antagonists.
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Affiliation(s)
- Wojciech Schönemann
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Simon Kleeb
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Philipp Dätwyler
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Oliver Schwardt
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
| | - Beat Ernst
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, CH-4056 Basel, Switzerland
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14
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Jedinák L, Cankař P. 4-Arylation of N-Acylamino- and Aminopyrazoles by the Suzuki-Miyaura Cross-Coupling Reaction. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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15
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Paioti PHS, Abboud KA, Aponick A. Catalytic Enantioselective Synthesis of Amino Skipped Diynes. J Am Chem Soc 2016; 138:2150-3. [PMID: 26855017 DOI: 10.1021/jacs.5b13387] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The Cu-catalyzed synthesis of nonracemic 3-amino skipped diynes via an enantiodetermining C-C bond formation is described using StackPhos as ligand. Despite challenging issues of reactivity and stereoselectivity inherent to these chiral skipped diynes, the reaction tolerates an extremely broad substrate scope with respect to all components and provides the title compounds in excellent enantiomeric excess. The alkyne moieties are demonstrated here to be useful synthetic handles, and 3-amino skipped diynes are convenient building blocks for enantioselective synthesis.
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Affiliation(s)
- Paulo H S Paioti
- Center for Heterocyclic Compounds, Department of Chemistry and ‡Center for X-ray Crystallography, Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
| | - Khalil A Abboud
- Center for Heterocyclic Compounds, Department of Chemistry and ‡Center for X-ray Crystallography, Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Center for Heterocyclic Compounds, Department of Chemistry and ‡Center for X-ray Crystallography, Department of Chemistry, University of Florida , Gainesville, Florida 32611, United States
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16
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Cacchi S, Fabrizi G, Goggiamani A, Iazzetti A, Verdiglione R. A facile palladium-catalyzed route to 2,5,7-trisubstituted indoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Shmatova OI, Shevchenko NE, Nenajdenko VG. Fischer Reaction with 2-Perfluoroalkylated Cyclic Imines ― An Efficient Route to 2-Perfluoroalkyl-Substituted Tryptamines and Their Derivatives and Homologues. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500860] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Kleeb S, Pang L, Mayer K, Eris D, Sigl A, Preston RC, Zihlmann P, Sharpe T, Jakob RP, Abgottspon D, Hutter AS, Scharenberg M, Jiang X, Navarra G, Rabbani S, Smiesko M, Lüdin N, Bezençon J, Schwardt O, Maier T, Ernst B. FimH antagonists: bioisosteres to improve the in vitro and in vivo PK/PD profile. J Med Chem 2015; 58:2221-39. [PMID: 25666045 DOI: 10.1021/jm501524q] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Urinary tract infections (UTIs), predominantly caused by uropathogenic Escherichia coli (UPEC), belong to the most prevalent infectious diseases worldwide. The attachment of UPEC to host cells is mediated by FimH, a mannose-binding adhesin at the tip of bacterial type 1 pili. To date, UTIs are mainly treated with antibiotics, leading to the ubiquitous problem of increasing resistance against most of the currently available antimicrobials. Therefore, new treatment strategies are urgently needed. Here, we describe the development of an orally available FimH antagonist. Starting from the carboxylate substituted biphenyl α-d-mannoside 9, affinity and the relevant pharmacokinetic parameters (solubility, permeability, renal excretion) were substantially improved by a bioisosteric approach. With 3'-chloro-4'-(α-d-mannopyranosyloxy)biphenyl-4-carbonitrile (10j) a FimH antagonist with an optimal in vitro PK/PD profile was identified. Orally applied, 10j was effective in a mouse model of UTI by reducing the bacterial load in the bladder by about 1000-fold.
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Affiliation(s)
- Simon Kleeb
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel , Klingelbergstrasse 50, CH-4056 Basel, Switzerland
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19
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GOGIREDDY SURENDRAREDDY, KALLE ARUNASREEM, DUBEY PK, REDDY ARAVAVEERA. Design, synthesis and characterization of 1H-pyridin-4-yl-3,5- disubstituted indazoles and their AKT inhibition activity. J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0644-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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20
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Bratt E, Verho O, Johansson MJ, Bäckvall JE. A General Suzuki Cross-Coupling Reaction of Heteroaromatics Catalyzed by Nanopalladium on Amino-Functionalized Siliceous Mesocellular Foam. J Org Chem 2014; 79:3946-54. [DOI: 10.1021/jo500409r] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Emma Bratt
- AstraZeneca R&D, Innovative Medicines, Cardiovascular and Metabolic Diseases, Medicinal Chemistry, Pepparedsleden 1, SE-431 83 Mölndal, Sweden
| | - Oscar Verho
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106
91 Stockholm, Sweden
| | - Magnus J Johansson
- AstraZeneca R&D, Innovative Medicines, Cardiovascular and Metabolic Diseases, Medicinal Chemistry, Pepparedsleden 1, SE-431 83 Mölndal, Sweden
| | - Jan-Erling Bäckvall
- Department
of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106
91 Stockholm, Sweden
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21
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Kuhn BL, Fortes MP, Kaufman TS, Silveira CC. Facile, efficient and eco-friendly synthesis of 5-sulfenyl tetrazole derivatives of indoles and pyrroles. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.101] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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22
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Fortes MP, Bassaco MM, Kaufman TS, Silveira CC. A convenient eco-friendly system for the synthesis of 5-sulfenyl tetrazole derivatives of indoles and pyrroles employing CeCl3·7H2O in PEG-400. RSC Adv 2014. [DOI: 10.1039/c4ra05625f] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
The use of CeCl3·7H2O in PEG-400 for the convenient synthesis of 5-sulfenyl tetrazoles derived from indoles and pyrroles, is reported. The scope and limitations of the transformation were also studied.
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Affiliation(s)
- Margiani P. Fortes
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
| | - Mariana M. Bassaco
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
| | | | - Claudio C. Silveira
- Departamento de Química
- Universidade Federal de Santa Maria 97105-900
- Santa Maria, Brazil
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23
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Düfert MA, Billingsley KL, Buchwald SL. Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles: substrate scope and mechanistic investigation. J Am Chem Soc 2013; 135:12877-85. [PMID: 23909907 DOI: 10.1021/ja4064469] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Suzuki-Miyaura cross-coupling of unprotected, nitrogen-rich heterocycles using precatalysts P1 or P2 is reported. The procedure allows for the reaction of variously substituted indazole, benzimidazole, pyrazole, indole, oxindole, and azaindole halides under mild conditions in good to excellent yields. Additionally, the mechanism behind the inhibitory effect of unprotected azoles on Pd-catalyzed cross-coupling reactions is described based on evidence gained through experimental, crystallographic, and theoretical investigations.
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Affiliation(s)
- M Alexander Düfert
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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24
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Keyari CM, Kearns AK, Duncan NS, Eickholt EA, Abbott G, Beall HD, Diaz P. Synthesis of new quinolinequinone derivatives and preliminary exploration of their cytotoxic properties. J Med Chem 2013; 56:3806-19. [PMID: 23574193 DOI: 10.1021/jm301689x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of 7-amino- and 7-acetamidoquinoline-5,8-diones with aryl substituents at the 2-position were synthesized, characterized, and evaluated as potential NAD(P)H:quinone oxidoreductase (NQO1) -directed antitumor agents. The synthesis of lavendamycin analogues is illustrated. Metabolism studies demonstrated that 7-amino analogues were generally better substrates for NQO1 than 7-amido analogues, as were compounds with smaller heteroaromatic substituents at the C-2 position. Surprisingly, only two compounds, 7-acetamido-2-(8'-quinolinyl)quinoline-5,8-dione (11) and 7-amino-2-(2-pyridinyl)quinoline-5,8-dione (23), showed selective cytotoxicity toward the NQO1-expressing MDA468-NQ16 breast cancer cells versus the NQO1-null MDA468-WT cells. For all other compounds, NQO1 protected against quinoline-5,8-dione cytotoxicity. Compound 22 showed potent activity against human breast cancer cells expressing or not expressing NQO1, with respective IC50 values of 190 nM and 140 nM and a low NQO1-mediated reduction rate, which suggests that the mode of action of 22 differs from that of lavendamycin and involves an unidentified target(s).
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Affiliation(s)
- Charles M Keyari
- Core Laboratory for Neuromolecular Production, Department of Biomedical and Pharmaceutical Sciences, The University of Montana , Missoula, Montana 59812, USA
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25
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26
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Jørgensen M, Jørgensen PN, Christoffersen CT, Jensen KG, Balle T, Bang-Andersen B. Discovery of novel α₁-adrenoceptor ligands based on the antipsychotic sertindole suitable for labeling as PET ligands. Bioorg Med Chem 2012; 21:196-204. [PMID: 23218776 DOI: 10.1016/j.bmc.2012.10.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 09/20/2012] [Accepted: 10/25/2012] [Indexed: 11/26/2022]
Abstract
The synthesis and in vitro preclinical profile of a series of 5-heteroaryl substituted analogs of the antipsychotic drug sertindole are presented. Compounds 1-(4-fluorophenyl)-3-(1-methylpiperidin-4-yl)-5-(pyrimidin-5-yl)-1H-indole (Lu AA27122, 3i) and 1-(4-fluorophenyl)-5-(1-methyl-1H-1,2,4-triazol-3-yl)-3-(1-methylpiperidin-4-yl)-1H-indole (3l) were identified as high affinity α(1A)-adrenoceptor ligands with K(i) values of 0.52 and 0.16 nM, respectively, and with a >100-fold selectivity versus dopamine D(2) receptors. Compound 3i showed almost equal affinity for α(1B)- (K(i)=1.9 nM) and α(1D)-adrenoceptors (K(i)=2.5 nM) as for α(1A), as well as moderate affinity for 5-HT(1B) (K(i)=13 nM) and 5-HT(6) (K(i)=16 nM) receptors, whereas 3l showed >40-fold selectivity toward all other targets tested. Based on in vitro assays for assessment of permeability rates and extent, it is predicted that both compounds enter the brain of rats, non-human primates, as well as humans, and as such are good candidates to be carried forward for further evaluation as positron emission tomography (PET) ligands.
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Affiliation(s)
- Morten Jørgensen
- Neuroscience Drug Discovery Denmark, H. Lundbeck A/S, 9 Ottiliavej, DK-2500 Copenhagen-Valby, Denmark
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27
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Molander GA, Trice SLJ, Kennedy SM. Scope of the two-step, one-pot palladium-catalyzed borylation/Suzuki cross-coupling reaction utilizing bis-boronic acid. J Org Chem 2012; 77:8678-88. [PMID: 22994557 DOI: 10.1021/jo301642v] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The use of bis-boronic acid for the direct synthesis of boronic acids has greatly facilitated the two-step, one-pot borylation/Suzuki cross-coupling reaction between aryl and heteroaryl halides. With use of Buchwald's second-generation XPhos preformed catalyst, high yields of cross-coupled products were obtained for most substrates. The method also allows an efficient two-step, one-pot synthesis, providing access to three distinct cross-coupled products after column chromatography. The method also provides a rapid and convenient route to teraryl compounds.
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Affiliation(s)
- Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States.
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28
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Verma AK, Jha RR, Chaudhary R, Tiwari RK, Reddy KSK, Danodia A. Copper-Catalyzed Tandem Synthesis of Indolo-, Pyrrolo[2,1-a]isoquinolines, Naphthyridines and Bisindolo/Pyrrolo[2,1-a]isoquinolines via Hydroamination of ortho-Haloarylalkynes Followed by C-2 Arylation. J Org Chem 2012; 77:8191-205. [DOI: 10.1021/jo301572p] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Akhilesh K. Verma
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Rajeev R. Jha
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Ritu Chaudhary
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Rakesh K. Tiwari
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
- Department of Biomedical & Pharmaceutical Sciences, University of Rhode Island, Kingston, Rhode Island, United States
| | - Kotla Siva K. Reddy
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
| | - Abhinandan Danodia
- Synthetic Organic Chemistry
Research Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
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29
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Pang L, Kleeb S, Lemme K, Rabbani S, Scharenberg M, Zalewski A, Schädler F, Schwardt O, Ernst B. FimH antagonists: structure-activity and structure-property relationships for biphenyl α-D-mannopyranosides. ChemMedChem 2012; 7:1404-22. [PMID: 22644941 DOI: 10.1002/cmdc.201200125] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Revised: 04/27/2012] [Indexed: 11/09/2022]
Abstract
Urinary tract infections (UTIs) are caused primarily by uropathogenic Escherichia coli (UPEC), which encode filamentous surface-adhesive organelles called type 1 pili. FimH is located at the tips of these pili. The initial attachment of UPEC to host cells is mediated by the interaction of the carbohydrate recognition domain (CRD) of FimH with oligomannosides on urothelial cells. Blocking these lectins with carbohydrates or analogues thereof prevents bacterial adhesion to host cells and therefore offers a potential therapeutic approach for prevention and/or treatment of UTIs. Although numerous FimH antagonists have been developed so far, few of them meet the requirement for clinical application due to poor pharmacokinetics. Additionally, the binding mode of an antagonist to the CRD of FimH can switch from an in-docking mode to an out-docking mode, depending on the structure of the antagonist. In this communication, biphenyl α-D-mannosides were modified to improve their binding affinity, to explore their binding mode, and to optimize their pharmacokinetic properties. The inhibitory potential of the FimH antagonists was measured in a cell-free competitive binding assay, a cell-based flow cytometry assay, and by isothermal titration calorimetry. Furthermore, pharmacokinetic properties such as log D, solubility, and membrane permeation were analyzed. As a result, a structure-activity and structure-property relationships were established for a series of biphenyl α-D-mannosides.
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Affiliation(s)
- Lijuan Pang
- Institute of Molecular Pharmacy, Pharmacenter, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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30
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Jiang X, Abgottspon D, Kleeb S, Rabbani S, Scharenberg M, Wittwer M, Haug M, Schwardt O, Ernst B. Antiadhesion Therapy for Urinary Tract Infections—A Balanced PK/PD Profile Proved To Be Key for Success. J Med Chem 2012; 55:4700-13. [DOI: 10.1021/jm300192x] [Citation(s) in RCA: 89] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiaohua Jiang
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Daniela Abgottspon
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Simon Kleeb
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Said Rabbani
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Meike Scharenberg
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Matthias Wittwer
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Martina Haug
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Oliver Schwardt
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
| | - Beat Ernst
- Institute
of Molecular Pharmacy, University of Basel, Klingelbergstrasse 50, 4056 Basel, Switzerland
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31
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Migliorini A, Oliviero C, Gasperi T, Loreto MA. The Suzuki reaction applied to the synthesis of novel pyrrolyl and thiophenyl indazoles. Molecules 2012; 17:4508-21. [PMID: 22508331 PMCID: PMC6268423 DOI: 10.3390/molecules17044508] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2012] [Revised: 04/05/2012] [Accepted: 04/09/2012] [Indexed: 11/30/2022] Open
Abstract
The paper describes the Suzuki cross-coupling of a variety of N and C-3 substituted 5-bromoindazoles with N-Boc-2-pyrrole and 2-thiopheneboronic acids. The reactions, performed in the presence of K(2)CO(3), dimethoxyethane and Pd(dppf)Cl(2) as catalyst, gave the corresponding adducts in good yields. The methodology allows the facile production of indazole-based heteroaryl compounds, a unique architectural motif that is ubiquitous in biologically active molecules.
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Affiliation(s)
- Antonella Migliorini
- Department of Chemistry, “Sapienza” University of Rome, P.le A. Moro 5, I-00185 Roma, Italy; (A.M.); (C.O.)
| | - Chiara Oliviero
- Department of Chemistry, “Sapienza” University of Rome, P.le A. Moro 5, I-00185 Roma, Italy; (A.M.); (C.O.)
| | - Tecla Gasperi
- Department of Mechanical and Industrial Engineering and CISDiC, University of Studies “Roma Tre”, via della Vasca Navale 79, I-00146 Roma, Italy;
| | - Maria Antonietta Loreto
- Department of Chemistry, “Sapienza” University of Rome, P.le A. Moro 5, I-00185 Roma, Italy; (A.M.); (C.O.)
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Tasch BOA, Merkul E, Müller TJJ. One-Pot Synthesis of Diazine-Bridged Bisindoles and Concise Synthesis of the Marine Alkaloid Hyrtinadine A. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100680] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Cacchi S, Fabrizi G. Update 1 of: Synthesis and Functionalization of Indoles Through Palladium-Catalyzed Reactions. Chem Rev 2011; 111:PR215-83. [PMID: 21557620 DOI: 10.1021/cr100403z] [Citation(s) in RCA: 603] [Impact Index Per Article: 46.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sandro Cacchi
- Dipartimento di Chimica e Technologie del Farmaco,
Sapienza, Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
- This is a Chemical Reviews Perennial Review. The root paper of this title was
published in Chem. Rev.2005, 105 (7), 2873−2920, DOI: 10.1021/cr040639b; Published
(Web) July 13, 2005. Updates to the text appear in red type
| | - Giancarlo Fabrizi
- Dipartimento di Chimica e Technologie del Farmaco,
Sapienza, Università di Roma, P.le A. Moro 5, 00185 Roma, Italy
- This is a Chemical Reviews Perennial Review. The root paper of this title was
published in Chem. Rev.2005, 105 (7), 2873−2920, DOI: 10.1021/cr040639b; Published
(Web) July 13, 2005. Updates to the text appear in red type
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Vyvyan JR, Dell Née Meyer JA, Ligon TJ, Motanic KK, Wall HS. Suzuki-Miyaura cross-coupling of 3-pyridyl triflates with 1-alkenyl-2-pinacol boronates. SYNTHESIS-STUTTGART 2011; 2010:3637-3644. [PMID: 21516181 DOI: 10.1055/s-0030-1258237] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Palladium-catalyzed Suzuki-type couplings of 3-pyridyl triflates with alkenyl pinacol boronates proceed in good to excellent yield. Optimized conditions use Pd(PPh(3))(4) (10 mol %) as catalyst with K(3)PO(4) (3 equiv) as base in dioxane.
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Affiliation(s)
- James R Vyvyan
- Department of Chemistry, Western Washington University, 516 High Street, Bellingham, WA 98225-9150
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Starčević Š, Božnar P, Turk S, Gobec S, Rižner TL. Design and synthesis of substrate mimetics based on an indole scaffold: potential inhibitors of 17β-HSD type 1. Horm Mol Biol Clin Investig 2011; 6:201-9. [PMID: 25961256 DOI: 10.1515/hmbci.2011.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Accepted: 02/07/2011] [Indexed: 11/15/2022]
Abstract
BACKGROUND Human 17β-hydroxysteroid dehydrogenase type 1 (17β-HSD1) acts at a pre-receptor level. It catalyzes NADPH-dependent reduction of the weak estrogen estrone into the most potent estrogen estradiol, which exerts its proliferative effects via estrogen receptors. Overexpression of 17β-HSD1 in estrogen-responsive tissues is related to the development of hormone-dependent diseases, such as breast cancer and endometriosis. 17β-HSD1 thus represents an attractive target for development of new drugs. METHODS We designed and synthesized a series of 3-, 5- and 6-phenyl indole derivatives as mimetics of the steroid substrate estrone. All of these compounds were evaluated for inhibition of recombinant human 17β-HSD1 from Escherichia coli, at concentrations of 0.6 μM and 6.0 μM. RESULTS Among 14 indole derivatives, compound 9 was an initial hit inhibitor of 17β-HSD1, with moderate inhibition (64% at 6 μM). Molecular docking into the crystal structure of 17β-HSD1 (1A27) revealed that this 5-phenyl indole derivative binds to 17β-HSD1 similarly to co-crystalized E2. Compound 9 forms two H-bonds with 17β-HSD1: one between the indole nitrogen and His222, and the second between the phenolic OH group and catalytic Tyr155. CONCLUSIONS The indole scaffold is one of the possible starting points for the design of substrate mimetics of the steroid substrate estrone. Our study shows that these 6- and, especially, 5-phenol indole derivatives can act as moderate inhibitors of 17β-HSD1. Based on inhibition assays and docking simulations, we can infer further improvements of the 5-phenol indole derivatives that might result in better inhibition profiles.
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Merkul E, Schäfer E, Müller TJJ. Rapid synthesis of bis(hetero)aryls by one-pot Masuda borylation–Suzuki coupling sequence and its application to concise total syntheses of meridianins A and G. Org Biomol Chem 2011; 9:3139-41. [DOI: 10.1039/c1ob05310h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Dolušić E, Larrieu P, Blanc S, Sapunaric F, Norberg B, Moineaux L, Colette D, Stroobant V, Pilotte L, Colau D, Ferain T, Fraser G, Galleni M, Galeni M, Frère JM, Masereel B, Van den Eynde B, Wouters J, Frédérick R. Indol-2-yl ethanones as novel indoleamine 2,3-dioxygenase (IDO) inhibitors. Bioorg Med Chem 2010; 19:1550-61. [PMID: 21269836 DOI: 10.1016/j.bmc.2010.12.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2010] [Revised: 12/07/2010] [Accepted: 12/13/2010] [Indexed: 01/24/2023]
Abstract
Indoleamine 2,3-dioxygenase (IDO) is a heme dioxygenase which has been shown to be involved in the pathological immune escape of diseases such as cancer. The synthesis and structure-activity relationships (SAR) of a novel series of IDO inhibitors based on the indol-2-yl ethanone scaffold is described. In vitro and in vivo biological activities have been evaluated, leading to compounds with IC(50) values in the micromolar range in both tests. Introduction of small substituents in the 5- and 6-positions of the indole ring, indole N-methylation and variations of the aromatic side chain are all well tolerated. An iron coordinating group on the linker is a prerequisite for biological activity, thus corroborating the virtual screening results.
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Affiliation(s)
- Eduard Dolušić
- Drug design and Discovery Center, University of Namur, 61 Rue de Bruxelles, 5000 Namur, Belgium
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Córdoba M, Castillo RR, Izquierdo ML, Alvarez-Builla J. Pd-catalyzed reactions on pyridinium N-heteroarylaminides. Step-by-step synthesis of 3,5-unsymmetrically disubstituted 2-aminopyridines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.02.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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Konishi H, Itoh T, Manabe K. Site-Selective Cross-Coupling of Dichlorinated Benzo-Fused Nitrogen-Heterocycles with Grignard Reagents. Chem Pharm Bull (Tokyo) 2010; 58:1255-8. [DOI: 10.1248/cpb.58.1255] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Tatsuya Itoh
- School of Pharmaceutical Sciences, University of Shizuoka
| | - Kei Manabe
- School of Pharmaceutical Sciences, University of Shizuoka
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41
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Prieto M, Mayor S, Lloyd-Williams P, Giralt E. Use of the SPhos Ligand to Suppress Racemization in Arylpinacolboronate Ester Suzuki Couplings Involving α-Amino Acids. Synthesis of Biaryl Derivatives of 4-Hydroxyphenylglycine, Tyrosine, and Tryptophan. J Org Chem 2009; 74:9202-5. [DOI: 10.1021/jo901899w] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Paul Lloyd-Williams
- Department of Organic Chemistry, Universitat de Barcelona, Martí i Franquès, 1-11, Barcelona, E-08028, Spain
| | - Ernest Giralt
- Department of Organic Chemistry, Universitat de Barcelona, Martí i Franquès, 1-11, Barcelona, E-08028, Spain
- Institute for Research in Biomedicine, Barcelona Science Park, Baldiri Reixac 10, Barcelona, E-08028, Spain
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42
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Molander GA, Canturk B, Kennedy LE. Scope of the Suzuki-Miyaura cross-coupling reactions of potassium heteroaryltrifluoroborates. J Org Chem 2009; 74:973-80. [PMID: 19105735 DOI: 10.1021/jo802590b] [Citation(s) in RCA: 188] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A wide variety of bench-stable potassium heteroaryltrifluoroborates were prepared, and general reaction conditions were developed for their cross-coupling to aryl and heteroaryl halides. The cross-coupled products were obtained in good to excellent yields. This method represents an efficient and facile installation of heterocyclic building blocks onto preexisting organic substructures.
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Affiliation(s)
- Gary A Molander
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
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43
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Kiliç Z, Isgör YG, Olgen S. Synthesis and pp60c‐SrcTyrosine Kinase Inhibitory Activities of Novel Indole‐3‐Imine and Amine Derivatives Substituted at N1 and C5. Arch Pharm (Weinheim) 2009; 342:333-43. [PMID: 19475593 DOI: 10.1002/ardp.200800216] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zuhal Kiliç
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ankara, Tandogan-Ankara, Turkey
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44
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Sun HX, Sun ZH, Wang B. B-Alkyl Suzuki–Miyaura cross-coupling of tri-n-alkylboranes with arylbromides bearing acidic functions under mild non-aqueous conditions. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.01.090] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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45
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Petit S, Duroc Y, Larue V, Giglione C, Léon C, Soulama C, Denis A, Dardel F, Meinnel T, Artaud I. Structure-Activity Relationship Analysis of the Peptide Deformylase Inhibitor 5-Bromo-1H-indole-3-acetohydroxamic Acid. ChemMedChem 2009; 4:261-75. [DOI: 10.1002/cmdc.200800251] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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46
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Wang B, Sun HX, Sun ZH, Lin GQ. Direct B-Alkyl Suzuki-Miyaura Cross-Coupling of Trialkyl- boranes with Aryl Bromides in the Presence of Unmasked Acidic or Basic Functions and Base-Labile Protections under Mild Non-Aqueous Conditions. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200800630] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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47
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Manolikakes G, Muñoz Hernandez C, Schade MA, Metzger A, Knochel P. Palladium- and nickel-catalyzed cross-couplings of unsaturated halides bearing relatively acidic protons with organozinc reagents. J Org Chem 2008; 73:8422-36. [PMID: 18834176 DOI: 10.1021/jo8015852] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A wide range of polyfunctional aryl, heteroaryl, alkyl, and benzylic zinc reagents were coupled with unsaturated aryl halides bearing an acidic NH or OH proton, using Pd(OAc)2 (1 mol %) and S-Phos (2 mol %) as catalyst without the need of protecting groups. A similar nickel-catalyzed reaction is described. The relative kinetic basicity of organozinc compounds as well as their stability toward acidic protons is also described.
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Affiliation(s)
- Georg Manolikakes
- Department Chemie and Biochemie, Ludwig-Maximilians-Universität, Butenandtstr. 5-13, 81377 Munich, Germany
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48
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Fleckenstein CA, Plenio H. Highly efficient Suzuki-Miyaura coupling of heterocyclic substrates through rational reaction design. Chemistry 2008; 14:4267-79. [PMID: 18366046 DOI: 10.1002/chem.200701877] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A dicyclohexyl(2-sulfo-9-(3-(4-sulfophenyl)propyl)-9H-fluoren-9-yl)phosphonium salt was synthesized in 64% overall yield in three steps from simple commercially available starting materials. The highly water-soluble catalyst obtained from the corresponding phosphine and [Na(2)PdCl(4)] enabled the Suzuki coupling of a broad variety of N- and S-heterocyclic substrates. Chloropyridines (-quinolines) and aryl chlorides were coupled with aryl-, pyridine- or indoleboronic acids in quantitative yields in water/n-butanol solvent mixtures in the presence of 0.005-0.05 mol % of Pd catalyst at 100 degrees C, chloropurines were quantitatively Suzuki coupled in the presence of 0.5 mol % of catalyst, and S-heterocyclic aryl chlorides and aryl- or 3-pyridylboronic acids required 0.01-0.05 mol % Pd catalyst for full conversion. The key to the high activity of the Pd-phosphine catalyst is the rational design of the reaction parameters (i.e., the presence of water in the reaction mixture, good solubility of reactants and catalyst in n-butanol/water (3:1), and the electron-rich and sterically demanding nature of the phosphine ligand).
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Affiliation(s)
- Christoph A Fleckenstein
- Anorganische Chemie im Zintl-Institut, TU Darmstadt, Petersenstrasse 18, 64287 Darmstadt, Germany
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49
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Manolikakes G, Schade MA, Hernandez CM, Mayr H, Knochel P. Negishi cross-couplings of unsaturated halides bearing relatively acidic hydrogen atoms with organozinc reagents. Org Lett 2008; 10:2765-8. [PMID: 18529011 DOI: 10.1021/ol8009013] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A wide range of polyfunctional aryl, heteroaryl, alkyl, and benzylic zinc reagents were coupled with unsaturated halides bearing an acidic NH or OH function, using Pd(OAc)(2) (1 mol %) and S-Phos (2 mol %) as catalyst without the need of protecting groups.
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Affiliation(s)
- Georg Manolikakes
- Department Chemie and Biochemie, Ludwig-Maximilians-Universität, Butenandtstrasse 5-13, 81377 München, Germany
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50
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Main CA, Petersson HM, Rahman SS, Hartley RC. High throughput synthesis of diverse 2,5-disubstituted indoles using titanium carbenoids bearing boronate functionality. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.08.119] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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