1
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Xu Q, Gou W, Dai P, Zhou X, Tian J, Meng X, Tian Y, Zhang L, Li C. Cinchona-Alkaloid-Derived NNP Ligand for Iridium-Catalyzed Asymmetric Hydrogenation of β-Keto Ester. J Org Chem 2024; 89:1446-1457. [PMID: 38267199 DOI: 10.1021/acs.joc.3c02032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2024]
Abstract
The Ir-catalyzed asymmetric hydrogenation of β-keto esters with Cinchona-alkaloid-derived NNP ligands has been developed. β-Hydroxy esters of opposite configuration were afforded smoothly with 91.5-99.1 and 81.6-99.3% ee, respectively, using NNP L2 and L7 derived from quinidine and quinine separately even on the gram scale. The protocol for the preparation of β-hydroxy esters of opposite configuration by the simple conversion of ligand configurations offered further opportunities for the synthesis of biologically active molecules and drugs.
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Affiliation(s)
- Qian Xu
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Wenchang Gou
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Pinli Dai
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Xuan Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Jie Tian
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Xin Meng
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Yu Tian
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Lin Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
| | - Chun Li
- State Key Laboratory of Functions and Applications of Medicinal Plants & School of Pharmaceutical Sciences Guizhou Medical University, Guiyang 550004, People's Republic of China
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2
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Maestro A, Nagy BS, Ötvös SB, Kappe CO. A Telescoped Continuous Flow Enantioselective Process for Accessing Intermediates of 1-Aryl-1,3-diols as Chiral Building Blocks. J Org Chem 2023; 88:15523-15529. [PMID: 37844195 PMCID: PMC10629223 DOI: 10.1021/acs.joc.3c02040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
A telescoped continuous flow process is reported for the enantioselective synthesis of chiral precursors of 1-aryl-1,3-diols, intermediates in the synthesis of ezetimibe, dapoxetine, duloxetine, and atomoxetine. The two-step sequence consists of an asymmetric allylboration of readily available aldehydes using a polymer-supported chiral phosphoric acid catalyst to introduce asymmetry, followed by selective epoxidation of the resulting alkene. The process is highly stable for at least 7 h and represents a transition-metal free enantioselective approach to valuable 1-aryl-1,3-diols.
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Affiliation(s)
- Aitor Maestro
- Department of Organic Chemistry I, University of the Basque Country, UPV/EHU, Paseo de la Universidad 7, 01006 Vitoria-Gasteiz, Spain
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Bence S Nagy
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
| | - Sándor B Ötvös
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
| | - C Oliver Kappe
- Institute of Chemistry, University of Graz, NAWI Graz, A-8010 Graz, Austria
- Center for Continuous Flow Synthesis and Processing (CC FLOW), Research Center Pharmaceutical Engineering GmbH (RCPE), A-8010 Graz, Austria
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3
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Wang F, Zhang S, Xie C, Jin X. Highly efficient and recyclable chiral phosphine-functionalized polyether ionic liquids for asymmetric hydrogenation of β-keto esters. RSC Adv 2023; 13:27865-27872. [PMID: 37746339 PMCID: PMC10517104 DOI: 10.1039/d3ra05087d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 09/13/2023] [Indexed: 09/26/2023] Open
Abstract
Herein, based on the concept of integration of phosphine ligands and ionic liquids (ILs), a class of chiral phosphine-functionalized polyether ionic liquids (CPF-PILs) were synthesized by ion-exchange reaction between polyether imidazolium ILs and a phenyl-sulfonated (S)-(-)-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (BINAP) chiral diphosphine ligand, and employed in the Ru-catalyzed homogeneous asymmetric hydrogenation of β-keto esters. The resulting CPF-PILs combined the dual functions of the chiral phosphine ligand and ILs, allowing efficient recovery and recycling of the chiral catalysts using only a catalytic amount of CPF-PILs. The effects of various factors, including the chiral catalyst structure, solvent properties, reaction temperature, hydrogen pressure, and hydrobromic acid dosage, on catalytic performance were thoroughly investigated, as well as the cycling stability and universality of the chiral catalysts were examined. The findings of the present study demonstrated that, under optimal reaction conditions, the model substrate methyl acetoacetate underwent quantitative conversion to methyl β-hydroxybutyrate with a 97% enantiomeric excess (ee). The chiral catalyst used in this process can be recycled up to 12 times and showed good applicability to structurally various β-keto esters. The present study presents a novel approach for using ILs in asymmetric hydrogenation reactions in an environmentally friendly manner.
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Affiliation(s)
- Fan Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 China
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 China
| | - Shuai Zhang
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 China
| | - Congxia Xie
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 China
| | - Xin Jin
- College of Chemical Engineering, Qingdao University of Science and Technology 53 Zhengzhou Road Qingdao 266042 China
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4
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Hennessy MC, Gandhi H, O'Sullivan TP. Organocatalytic Asymmetric Peroxidation of γ,δ-Unsaturated β-Keto Esters-A Novel Route to Chiral Cycloperoxides. Molecules 2023; 28:molecules28114317. [PMID: 37298799 DOI: 10.3390/molecules28114317] [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: 04/19/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 06/12/2023] Open
Abstract
A methodology for the asymmetric peroxidation of γ,δ-unsaturated β-keto esters is presented. Using a cinchona-derived organocatalyst, the target δ-peroxy-β-keto esters were obtained in high enantiomeric ratios of up to 95:5. Additionally, these δ-peroxy esters can be readily reduced to chiral δ-hydroxy-β-keto esters without impacting the β-keto ester functionality. Importantly, this chemistry opens up a concise route to chiral 1,2-dioxolanes, a common motif in many bioactive natural products, via a novel P2O5-mediated cyclisation of the corresponding δ-peroxy-β-hydroxy esters.
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Affiliation(s)
- Mary C Hennessy
- School of Chemistry, University College Cork, T12 YN60 Cork, Ireland
- Analytical and Biological Chemistry Research Facility, University College Cork, T12 YN60 Cork, Ireland
| | - Hirenkumar Gandhi
- School of Chemistry, University College Cork, T12 YN60 Cork, Ireland
- Analytical and Biological Chemistry Research Facility, University College Cork, T12 YN60 Cork, Ireland
| | - Timothy P O'Sullivan
- School of Chemistry, University College Cork, T12 YN60 Cork, Ireland
- Analytical and Biological Chemistry Research Facility, University College Cork, T12 YN60 Cork, Ireland
- School of Pharmacy, University College Cork, T12 YN60 Cork, Ireland
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5
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Soh C, Kollipara MR, Diengdoh DF, Banothu V, Kaminsky W, Rymmai. Cyclopentadienyl and indenyl ruthenium(II) complexes containing pyridyl/pyrimidyl based thiourea derivative ligands: Syntheses, antibacterial and antioxidant studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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6
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Zhao X, Yang Z, Cheng Y, Huang A, Hu F, Ling F, Zhong W. Divergent Synthesis of β‐Hydroxy Amides (Esters) and γ‐Amino Alcohols via Ir/f‐Diaphos Catalyzed Asymmetric Hydrogenation. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
| | | | | | - An Huang
- Zhejiang University of Technology CHINA
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7
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Liu C, Zhang L, Cao L, Xiong Y, Ma Y, Cheng R, Ye J. Iridium-catalyzed enantioselective synthesis of chiral γ-amino alcohols and intermediates of (S)-duloxetine, (R)-fluoxetine, and (R)-atomoxetine. Commun Chem 2022; 5:63. [PMID: 36697664 PMCID: PMC9814375 DOI: 10.1038/s42004-022-00678-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 04/26/2022] [Indexed: 02/01/2023] Open
Abstract
Chiral γ-amino alcohols are the prevalent structural motifs and building blocks in pharmaceuticals and bioactive molecules. Enantioselective hydrogenation of β-amino ketones provides a straightforward and powerful tool for the synthesis of chiral γ-amino alcohols, but the asymmetric transformation is synthetically challenging. Here, a series of tridentate ferrocene-based phosphine ligands bearing modular and tunable unsymmetrical vicinal diamine scaffolds were designed, synthesized, and evaluated in the iridium-catalyzed asymmetric hydrogenation of β-amino ketones. The system was greatly effective to substrates with flexible structure and functionality, and diverse β-tertiary-amino ketones and β-secondary-amino ketones were hydrogenated smoothly. The excellent reactivities and enantioselectivities were achieved in the asymmetric delivery of various chiral γ-amino alcohols with up to 99% yields, >99% ee values, and turnover number (TON) of 48,500. The gram-scale reactions with low catalyst loading showed the potential application in industrial synthesis of chiral drugs, such as (S)-duloxetine, (R)-fluoxetine, and (R)-atomoxetine.
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Affiliation(s)
- Chengyu Liu
- grid.28056.390000 0001 2163 4895Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Lei Zhang
- grid.28056.390000 0001 2163 4895Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Liming Cao
- grid.28056.390000 0001 2163 4895Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China
| | - Yan Xiong
- grid.28056.390000 0001 2163 4895School of Chemical Engineering, East China University of Science and Technology, Shanghai, China
| | - Yueyue Ma
- grid.411851.80000 0001 0040 0205School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, China
| | - Ruihua Cheng
- grid.28056.390000 0001 2163 4895School of Chemical Engineering, East China University of Science and Technology, Shanghai, China ,grid.411851.80000 0001 0040 0205School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, China
| | - Jinxing Ye
- grid.28056.390000 0001 2163 4895Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education, Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai, China ,grid.411851.80000 0001 0040 0205School of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, China
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8
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Bando Y, Hou Y, Seyfarth L, Probst J, Götze S, Bogacz M, Hellmich UA, Stallforth P, Mittag M, Arndt HD. Total Synthesis and Structure Correction of the Cyclic Lipodepsipeptide Orfamide A. Chemistry 2022; 28:e202104417. [PMID: 35199896 PMCID: PMC9311703 DOI: 10.1002/chem.202104417] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Indexed: 11/15/2022]
Abstract
A total synthesis of the cyclic lipodepsipeptide natural product orfamide A was achieved. By developing a synthesis format using an aminoacid ester building block and SPPS protocol adaptation, a focused library of target compounds was obtained, in high yield and purity. Spectral and LC‐HRMS data of all library members with the isolated natural product identified the 5Leu residue to be d‐ and the 3’‐OH group to be R‐configured. The structural correction of orfamide A by chemical synthesis and analysis was confirmed by biological activity comparison in Chlamydomonas reinhardtii, which indicated compound configuration to be important for bioactivity. Acute toxicity was also found against Trypanosoma brucei, the parasite causing African sleeping sickness.
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Affiliation(s)
- Yuko Bando
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Yu Hou
- Friedrich Schiller University Jena Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Am Planetarium 1, 07743, Jena, Germany
| | - Lydia Seyfarth
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Jannik Probst
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Sebastian Götze
- Leibniz Institute for Natural Product Research and Infection Biology Hans Knöll Institute, Department of Paleobiotechnology, Beutenbergstraße 11a, 07745, Jena, Germany
| | - Marta Bogacz
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Ute A Hellmich
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
| | - Pierre Stallforth
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany.,Leibniz Institute for Natural Product Research and Infection Biology Hans Knöll Institute, Department of Paleobiotechnology, Beutenbergstraße 11a, 07745, Jena, Germany
| | - Maria Mittag
- Friedrich Schiller University Jena Matthias Schleiden Institute of Genetics, Bioinformatics and Molecular Botany, Am Planetarium 1, 07743, Jena, Germany
| | - Hans-Dieter Arndt
- Friedrich Schiller University Jena, Institute for Organic Chemistry and Macromolecular Chemistry, Humboldtstr. 10, 07743, Jena, Germany
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9
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Takashina K, Katsuyama A, Kaguchi R, Yamamoto K, Sato T, Takahashi S, Horiuchi M, Yokota SI, Ichikawa S. Solid-Phase Total Synthesis of Plusbacin A 3. Org Lett 2022; 24:2253-2257. [PMID: 35293208 DOI: 10.1021/acs.orglett.2c00667] [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
The total synthesis of the depsipeptide natural product plusbacin A3 (1) utilizing solid-phase peptide synthesis (SPPS) was disclosed. A 3-hydroxy-proline derivative compatible with Fmoc SPPS was prepared by a diastereoselective Joullié-Ugi three-component reaction (JU-3CR)/hydrolysis sequence. After peptide elongation on the solid support, cleavage of the peptide from the resin, followed by macrolactamization and global deprotection, gave plusbacin A3 (1).
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Affiliation(s)
- Kazuki Takashina
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Akira Katsuyama
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.,Center for Research and Education on Drug Discovery, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Rintaro Kaguchi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Kazuki Yamamoto
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.,Center for Research and Education on Drug Discovery, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
| | - Toyotaka Sato
- Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan.,Graduate School of Infectious Diseases, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Satoshi Takahashi
- Division of Laboratory Medicine, Sapporo Medical University Hospital, Minami-1, Nishi-16, Chuo-ku, Sapporo 060-8543, Japan.,Department of Infection Control and Laboratory Medicine, Sapporo Medical University School of Medicine, Minami-1, Nishi-16, Chuo-ku, Sapporo 060-8543, Japan
| | - Motohiro Horiuchi
- Faculty of Veterinary Medicine, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan.,Graduate School of Infectious Diseases, Hokkaido University, Kita-18, Nishi-9, Kita-ku, Sapporo 060-0818, Japan
| | - Shin-Ichi Yokota
- Department of Microbiology, Sapporo Medical University School of Medicine, Minami-1, Nishi-17, Chuo-ku, Sapporo 060-8556, Japan
| | - Satoshi Ichikawa
- Faculty of Pharmaceutical Sciences, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.,Center for Research and Education on Drug Discovery, Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan.,Global Station for Biosurfaces and Drug Discovery, Global Institution for Collaborative Research and Education (GI-CoRE), Hokkaido University, Kita-12, Nishi-6, Kita-ku, Sapporo 060-0812, Japan
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10
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Yasoshima K, Yoshida M, Doi T. The Concise Synthesis of a tert-Butoxycarbonyl Derivative of (3 R,4 S)-4-Amino-3-hydroxy-7-( N-nitrosohydroxyamino)-2,2-dimethylheptanoate, a Component of JBIR-141. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20220035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kotaro Yasoshima
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Masahito Yoshida
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Takayuki Doi
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3, Aza-aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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11
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Genêt J, Phansavath P, Ratovelomanana‐Vidal V. Asymmetric Hydrogenation: Design of Chiral Ligands and Transition Metal Complexes. Synthetic and Industrial Applications. Isr J Chem 2021. [DOI: 10.1002/ijch.202100023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Jean‐Pierre Genêt
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
| | - Phannarath Phansavath
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
| | - Virginie Ratovelomanana‐Vidal
- Chimie ParisTech PSL University CNRS Institute of Chemistry for Life & Health Sciences CSB2D Team 75005 Paris France
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12
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Manda JN, Butler BB, Aponick A. Synthesis and Biological Evaluation of the Southern Hemisphere of Spirastrellolide A and Analogues. J Org Chem 2020; 85:13694-13709. [PMID: 33111529 DOI: 10.1021/acs.joc.0c01867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis and biological evaluation of truncated spirastrellolide A analogues comprised of the southern hemisphere against protein phosphatase 2A are described. A convergent synthesis was designed featuring two gold-catalyzed cyclization reactions, specifically, a dehydrative cyclization of monoallylic diols for the synthesis of the tetrahydropyran (A-ring) and a regioselective spiroketalization for the efficient generation of the [6,6]-spiroketal (B, C-ring system). The synthesis of the southern hemisphere of spirastrellolide A was achieved involving the longest linear sequence of 19 steps. A total of eight spirastrellolide A analogues were synthesized, and preliminary PP2A enzyme assay inhibition studies were performed for the first time on analogues of the southern hemisphere. Several analogues showed inhibition, which is a positive indication and perhaps suggests that the unsaturated spiroketal fragment might be crucial to induce PP2A inhibition.
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Affiliation(s)
- Jagadeesh Nagendra Manda
- Florida Center for Heterocyclic Compounds and Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Barry B Butler
- Florida Center for Heterocyclic Compounds and Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
| | - Aaron Aponick
- Florida Center for Heterocyclic Compounds and Department of Chemistry, University of Florida, Gainesville, Florida 32611, United States
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13
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Mathieu G, Patel H, Lebel H. Convenient Continuous Flow Synthesis of N-Methyl Secondary Amines from Alkyl Mesylates and Epoxides. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.0c00193] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Gary Mathieu
- Department of Chemistry and Center in Green Chemistry and Catalysis (CGCC), Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, QC H3C 3J7, Canada
| | - Heena Patel
- Department of Chemistry and Center in Green Chemistry and Catalysis (CGCC), Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, QC H3C 3J7, Canada
| | - Hélène Lebel
- Department of Chemistry and Center in Green Chemistry and Catalysis (CGCC), Université de Montréal, P.O. Box 6128, Station Downtown, Montréal, QC H3C 3J7, Canada
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14
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Luo R, Chen MM, Ouyang L, Chan ASC, Lu G. Enantioselective Reformatsky Reaction of Ketones Catalyzed by Chiral Indolinylmethanol. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Renshi Luo
- Department Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery; School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou P. R. China
- School of Pharmaceutical Sciences; Gannan Medical University; 341000 Ganzhou Jiangxi Province P. R. China
| | - Miao-Miao Chen
- Department Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery; School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou P. R. China
| | - Lu Ouyang
- School of Pharmaceutical Sciences; Gannan Medical University; 341000 Ganzhou Jiangxi Province P. R. China
| | - Albert S. C. Chan
- Department Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery; School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou P. R. China
| | - Gui Lu
- Department Guangdong Provincial Key Laboratory of Chiral Molecule and Drug Discovery; School of Pharmaceutical Sciences; Sun Yat-sen University; 510006 Guangzhou P. R. China
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15
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Enzymatic synthesis of an orlistat intermediate using a mutant short-chain dehydrogenase from Novosphingobium aromaticivorans. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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16
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Study of the conformational behaviour of trehalose mycolates by FT-IR spectroscopy. Chem Phys Lipids 2019; 223:104789. [DOI: 10.1016/j.chemphyslip.2019.104789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/22/2019] [Accepted: 06/25/2019] [Indexed: 11/24/2022]
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17
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Bourboula A, Limnios D, Kokotou MG, Mountanea OG, Kokotos G. Enantioselective Organocatalysis-Based Synthesis of 3-Hydroxy Fatty Acids and Fatty γ-Lactones. Molecules 2019; 24:molecules24112081. [PMID: 31159242 PMCID: PMC6600402 DOI: 10.3390/molecules24112081] [Citation(s) in RCA: 7] [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: 03/17/2019] [Revised: 05/27/2019] [Accepted: 05/27/2019] [Indexed: 02/03/2023] Open
Abstract
3-Hydroxy fatty acids have attracted the interest of researchers, since some of them may interact with free fatty acid receptors more effectively than their non-hydroxylated counterparts and their determination in plasma provides diagnostic information regarding mitochondrial deficiency. We present here the development of a convenient and general methodology for the asymmetric synthesis of 3-hydroxy fatty acids. The enantioselective organocatalytic synthesis of terminal epoxides, starting from long chain aldehydes, is the key-step of our methodology, followed by ring opening with vinylmagnesium bromide. Ozonolysis and subsequent oxidation leads to the target products. MacMillan’s third generation imidazolidinone organocatalyst has been employed for the epoxide formation, ensuring products in high enantiomeric purity. Furthermore, a route for the incorporation of deuterium on the carbon atom carrying the hydroxy group was developed allowing the synthesis of deuterated derivatives, which may be useful in biological studies and in mass spectrometry studies. In addition, the synthesis of fatty γ-lactones, corresponding to 4-hydroxy fatty acids, was also explored.
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Affiliation(s)
- Asimina Bourboula
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Dimitris Limnios
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Maroula G Kokotou
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - Olga G Mountanea
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
| | - George Kokotos
- Department of Chemistry, National and Kapodistrian University of Athens, Panepistimiopolis, Athens 15771, Greece.
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18
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Nakamura H, Tsukano C, Yoshida T, Yasui M, Yokouchi S, Kobayashi Y, Igarashi M, Takemoto Y. Total Synthesis of Caprazamycin A: Practical and Scalable Synthesis of syn-β-Hydroxyamino Acids and Introduction of a Fatty Acid Side Chain to 1,4-Diazepanone. J Am Chem Soc 2019; 141:8527-8540. [PMID: 31067040 DOI: 10.1021/jacs.9b02220] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The first total synthesis of caprazamycin A (1), a representative liponucleoside antibiotic, is described. Diastereoselective aldol reactions of aldehydes 12 and 25-27, derived from uridine, with diethyl isocyanomalonate 13 and phenylcarbamate 21 were investigated using thiourea catalysts 14 or bases to synthesize syn-β-hydroxyamino acid derivatives. The 1,4-diazepanone core of 1 was constructed using a Mitsunobu reaction, and the fatty acid side chain was introduced using a stepwise sequence based on model studies. Notably, global deprotection was realized using palladium black and formic acid without hydrogenating the olefin in the uridine unit.
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Affiliation(s)
- Hugh Nakamura
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Chihiro Tsukano
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Takuma Yoshida
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Motohiro Yasui
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Shinsuke Yokouchi
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Yusuke Kobayashi
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
| | - Masayuki Igarashi
- Institute of Microbial Chemistry (BIKAKEN), Tokyo , 3-14-23 Kamiosaki , Shinagawa-ku, Tokyo 141-0021 , Japan
| | - Yoshiji Takemoto
- Graduate School of Pharmaceutical Sciences , Kyoto University , Yoshida, Sakyo-ku, Kyoto 606-8501 , Japan
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19
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Zhang F, Wang C, Xie J, Zhou Q. Synthesis of Tridentate Chiral Spiro Aminophosphine−Oxazoline Ligands and Application to Asymmetric Hydrogenation of α‐Keto Amides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900251] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Feng‐Hua Zhang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Chen Wang
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Jian‐Hua Xie
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Qi‐Lin Zhou
- State Key Laboratory and Institute of Elemento-organic ChemistryCollege of ChemistryNankai University Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)Nankai University Tianjin 300071 People's Republic of China
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20
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Richter LR, Vogler B, Penton AF, Setzer WN, Haber WA, Caffrey CR, Hansell E, McKerrow JH. 3-O-(3′-Hydroxytetradecanoyl)lupeol from Sorocea trophoides Inhibits Cruzain. Nat Prod Commun 2019. [DOI: 10.1177/1934578x0700200902] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The crude chloroform extract from the stem bark of Sorocea trophoides (Moraceae) showed in-vitro inhibition of the cysteine protease cruzain. Activity-directed fractionation led to isolation of the novel 3- O-(3′-hydroxytetradecanoyl)lupeol as the inhibitory agent. The structure was elucidated by analysis of NMR spectra.
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Affiliation(s)
- Lori R. Richter
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, Alabama 35899, USA
| | - Bernhard Vogler
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, Alabama 35899, USA
| | - Ashley F. Penton
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, Alabama 35899, USA
| | - William N. Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, Alabama 35899, USA
| | - William A. Haber
- Missouri Botanical Garden, St. Louis, Missouri 63166, USA Apdo. 50–5655, Monteverde, Puntarenas, Costa Rica
| | - Conor R. Caffrey
- Tropical Disease Research Unit, Department of Pathology, University of California San Francisco, VAMC, 4150 Clement Street-113B, San Francisco, California 94121, USA
| | - Elizabeth Hansell
- Tropical Disease Research Unit, Department of Pathology, University of California San Francisco, VAMC, 4150 Clement Street-113B, San Francisco, California 94121, USA
| | - James H. McKerrow
- Tropical Disease Research Unit, Department of Pathology, University of California San Francisco, VAMC, 4150 Clement Street-113B, San Francisco, California 94121, USA
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21
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Lesur E, Baron A, Dietrich C, Buchotte M, Doisneau G, Urban D, Beau JM, Bayan N, Vauzeilles B, Guianvarc’h D, Bourdreux Y. First access to a mycolic acid-based bioorthogonal reporter for the study of the mycomembrane and mycoloyltransferases in Corynebacteria. Chem Commun (Camb) 2019; 55:13074-13077. [DOI: 10.1039/c9cc05754d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study we describe the first synthesis of an alkyne-based trehalose monomycolate probe closely mimicking the complex pattern of mycolic acids and its utility for the study of mycomembrane and mycoloyltransferases in Corynebacteria.
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22
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Schreyer L, Kaib PSJ, Wakchaure VN, Obradors C, Properzi R, Lee S, List B. Confined acids catalyze asymmetric single aldolizations of acetaldehyde enolates. Science 2018; 362:216-219. [DOI: 10.1126/science.aau0817] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 08/07/2018] [Indexed: 12/11/2022]
Affiliation(s)
- Lucas Schreyer
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Philip S. J. Kaib
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Vijay N. Wakchaure
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Carla Obradors
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Roberta Properzi
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Sunggi Lee
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Benjamin List
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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23
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Xie X, Lu B, Li W, Zhang Z. Coordination determined chemo- and enantioselectivities in asymmetric hydrogenation of multi-functionalized ketones. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.07.013] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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24
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Oliveira SSS, Bello ML, Rodrigues CR, Azevedo PLDE, Ramos MCKV, Aquino-Neto FRDE, Fiaux SB, Dias LRS. Asymmetric bioreduction of β-ketoesters derivatives by Kluyveromyces marxianus: influence of molecular structure on the conversion and enantiomeric excess. AN ACAD BRAS CIENC 2017; 89:1403-1415. [PMID: 28793010 DOI: 10.1590/0001-3765201720170118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 03/28/2017] [Indexed: 01/23/2023] Open
Abstract
This study presents the bioreduction of six β-ketoesters by whole cells of Kluyveromyces marxianus and molecular investigation of a series of 13 β-ketoesters by hologram quantitative structure-activity relationship (HQSAR) in order to relate with conversion and enantiomeric excess of β-stereogenic-hydroxyesters obtained by the same methodology. Four of these were obtained as (R)-configuration and two (S)-configuration, among them four compounds exhibited >99% enantiomeric excess. The β-ketoesters series LUMO maps showed that the β-carbon of the ketoester scaffold are exposed to undergo nucleophilic attack, suggesting a more favorable β-carbon side to enzymatic reduction based on adopted molecular conformation at the reaction moment. The HQSAR method was performed on the β-ketoesters derivatives separating them into those provided predominantly (R)- or (S)-β-hydroxyesters. The HQSAR models for both (R)- and (S)-configuration showed high predictive capacity. The HQSAR contribution maps suggest the importance of β-ketoesters scaffold as well as the substituents attached therein to asymmetric reduction, showing a possible influence of the ester group carbonyl position on the molecular conformation in the enzyme catalytic site, exposing a β-carbon side to the bioconversion to (S)- and (R)-enantiomers.
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Affiliation(s)
- Simone S S Oliveira
- Faculdade de Farmácia, Universidade Federal Fluminense/UFF, Rua Mário Viana, 523, Santa Rosa, 24241-000 Niterói, RJ, Brazil
| | - Murilo L Bello
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro/UFRJ, Centro de Ciências da Saúde, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-599 Rio de Janeiro, RJ, Brazil
| | - Carlos R Rodrigues
- Faculdade de Farmácia, Universidade Federal do Rio de Janeiro/UFRJ, Centro de Ciências da Saúde, Av. Carlos Chagas Filho, 373, Cidade Universitária, 21941-599 Rio de Janeiro, RJ, Brazil
| | - Paula L DE Azevedo
- Instituto de Química, Universidade Federal do Rio de Janeiro/UFRJ, Centro de Tecnologia, Av. Athos da Silveira Ramos, 149, Bloco A, Cidade Universitária, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Maria C K V Ramos
- Instituto de Química, Universidade Federal do Rio de Janeiro/UFRJ, Centro de Tecnologia, Av. Athos da Silveira Ramos, 149, Bloco A, Cidade Universitária, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Francisco R DE Aquino-Neto
- Instituto de Química, Universidade Federal do Rio de Janeiro/UFRJ, Centro de Tecnologia, Av. Athos da Silveira Ramos, 149, Bloco A, Cidade Universitária, 21941-909 Rio de Janeiro, RJ, Brazil
| | - Sorele B Fiaux
- Faculdade de Farmácia, Universidade Federal Fluminense/UFF, Rua Mário Viana, 523, Santa Rosa, 24241-000 Niterói, RJ, Brazil
| | - Luiza R S Dias
- Faculdade de Farmácia, Universidade Federal Fluminense/UFF, Rua Mário Viana, 523, Santa Rosa, 24241-000 Niterói, RJ, Brazil
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25
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Chen XS, Hou CJ, Qin C, Liu H, Liu YJ, Huang DZ, Hu XP. Ir-catalyzed asymmetric hydrogenation of β-keto esters with chiral ferrocenyl P,N,N-ligands. RSC Adv 2017. [DOI: 10.1039/c7ra00472a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The Ir-catalyzed asymmetric hydrogenation of β-keto esters with chiral ferrocenyl P,N,N-ligands has been developed, providing the corresponding β-hydroxy esters in good to excellent enantioselectivities.
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Affiliation(s)
- Xiu-Shuai Chen
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- China
- Dalian Institute of Chemical Physics
| | - Chuan-Jin Hou
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- China
- Post-Doctoral Research Station of Dalian Zhenbang Fluorocarbon Paint Stock Co., Ltd
| | - Chao Qin
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- China
- Dalian Institute of Chemical Physics
| | - Hongzhu Liu
- Post-Doctoral Research Station of Dalian Zhenbang Fluorocarbon Paint Stock Co., Ltd
- Dalian 116036
- China
| | - Yan-Jun Liu
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- China
| | - De-Zhi Huang
- School of Light Industry and Chemical Engineering
- Dalian Polytechnic University
- Dalian 116034
- China
| | - Xiang-Ping Hu
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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26
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Larik FA, Saeed A, Channar PA, Mehfooz H. Stereoselective synthetic approaches towards (S)-duloxetine: 2000 to date. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.tetasy.2016.09.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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27
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Candida parapsilosis: A versatile biocatalyst for organic oxidation-reduction reactions. Bioorg Chem 2016; 68:187-213. [DOI: 10.1016/j.bioorg.2016.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 08/08/2016] [Accepted: 08/10/2016] [Indexed: 11/22/2022]
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28
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Chen X, Liu ZQ, Lin CP, Zheng YG. Chemoenzymatic synthesis of (S)-duloxetine using carbonyl reductase from Rhodosporidium toruloides. Bioorg Chem 2016; 65:82-9. [DOI: 10.1016/j.bioorg.2016.02.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2015] [Revised: 02/05/2016] [Accepted: 02/08/2016] [Indexed: 01/14/2023]
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29
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Bao DH, Wu HL, Liu CL, Xie JH, Zhou QL. Development of Chiral Spiro P-N-S Ligands for Iridium-Catalyzed Asymmetric Hydrogenation of β-Alkyl-β-Ketoesters. Angew Chem Int Ed Engl 2015; 54:8791-4. [PMID: 26062032 DOI: 10.1002/anie.201502860] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2015] [Indexed: 11/10/2022]
Abstract
The chiral tridentate spiro P-N-S ligands (SpiroSAP) were developed, and their iridium complexes were prepared. Introduction of a 1,3-dithiane moiety into the ligand resulted in a highly efficient chiral iridium catalyst for asymmetric hydrogenation of β-alkyl-β-ketoesters, producing chiral β-alkyl-β-hydroxyesters with excellent enantioselectivities (95-99.9% ee) and turnover numbers of up to 355,000.
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Affiliation(s)
- Deng-Hui Bao
- State Key Laboratory and Institute of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn
| | - Hui-Ling Wu
- State Key Laboratory and Institute of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn
| | - Chao-Lun Liu
- State Key Laboratory and Institute of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn
| | - Jian-Hua Xie
- State Key Laboratory and Institute of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn.
| | - Qi-Lin Zhou
- State Key Laboratory and Institute of Elemento-organic Chemistry, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Nankai University, Tianjin 300071 (China) http://zhou.nankai.edu.cn.
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30
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Bao DH, Wu HL, Liu CL, Xie JH, Zhou QL. Development of Chiral Spiro P-N-S Ligands for Iridium-Catalyzed Asymmetric Hydrogenation of β-Alkyl-β-Ketoesters. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201502860] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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31
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Hasdemir B. Asymmetric Synthesis of Some Chiral Aryl and Hetero Aryl-Substituted β-, γ-, δ-Hydroxy Esters. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2014.1003353] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Belma Hasdemir
- Department of Chemistry, Faculty of Engineering, Istanbul University, Istanbul, Turkey
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32
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Nakamura H, Tsukano C, Yasui M, Yokouchi S, Igarashi M, Takemoto Y. Total Synthesis of (−)-Caprazamycin A. Angew Chem Int Ed Engl 2015; 54:3136-9. [DOI: 10.1002/anie.201411954] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Indexed: 12/19/2022]
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33
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Nakamura H, Tsukano C, Yasui M, Yokouchi S, Igarashi M, Takemoto Y. Total Synthesis of (−)-Caprazamycin A. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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34
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van der Peet PL, Gunawan C, Torigoe S, Yamasaki S, Williams SJ. Corynomycolic acid-containing glycolipids signal through the pattern recognition receptor Mincle. Chem Commun (Camb) 2015; 51:5100-3. [DOI: 10.1039/c5cc00085h] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Glucose monocorynomycolate is revealed to signal through both mouse and human Mincle. Glycerol monocorynomycolate is shown to selectively signal through human Mincle, with the activity residing predominantly in the 2′S-isomer.
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Affiliation(s)
- Phillip L. van der Peet
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- University of Melbourne
- Australia
| | - Christian Gunawan
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- University of Melbourne
- Australia
| | - Shota Torigoe
- Division of Molecular Immunology
- Medical Institute of Bioregulation
- Kyushu University
- Fukuoka 812-8582
- Japan
| | - Sho Yamasaki
- Division of Molecular Immunology
- Medical Institute of Bioregulation
- Kyushu University
- Fukuoka 812-8582
- Japan
| | - Spencer J. Williams
- School of Chemistry and Bio21 Molecular Science and Biotechnology Institute
- University of Melbourne
- Australia
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35
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Poopari MR, Dezhahang Z, Shen K, Wang L, Lowary TL, Xu Y. Absolute Configuration and Conformation of Two Fráter–Seebach Alkylation Reaction Products by Film VCD and ECD Spectroscopic Analyses. J Org Chem 2014; 80:428-37. [DOI: 10.1021/jo502438a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mohammad Reza Poopari
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
| | - Zahra Dezhahang
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
| | - Ke Shen
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
| | - Lei Wang
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
| | - Todd L. Lowary
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
| | - Yunjie Xu
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta T6G
2G2, Canada
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36
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Gangadhara KL, Srivastava P, Rozenski J, Mattelaer HP, Leen V, Dehaen W, Hofkens J, Lescrinier E, Herdewijn P. Design and synthesis of nucleolipids as possible activated precursors for oligomer formation via intramolecular catalysis: stability study and supramolecular organization. ACTA ACUST UNITED AC 2014; 5:5. [PMID: 25558290 PMCID: PMC4279058 DOI: 10.1186/s13322-014-0005-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 10/06/2014] [Indexed: 01/15/2023]
Abstract
BACKGROUND Fatty acid vesicles are an important part of protocell models currently studied. As protocells can be considered as pre-biological precursors of cells, the models try to contribute to a better understanding of the (cellular) origin of life and emphasize on 2 major aspects: compartmentalization and replication. It has been demonstrated that lipid-based membranes are amenable to growth and division (shell replication). Furthermore compartmentalization creates a unique micro-environment in which biomolecules can accumulate and reactions can occur. Pioneering research by Sugawara, Deamer, Luisi, Szostak and Rasmussen gave more insight in obtaining autocatalytic, self-replicating vesicles capable of containing and reproducing nucleic acid sequences (core replication). Linking both core and shell replication is a challenging feat requiring thorough understanding of membrane dynamics and (auto)catalytic systems. A possible solution may lie in a class of compounds called nucleolipids, who combine a nucleoside, nucleotide or nucleobase with a lipophilic moiety. Early contributions by the group of Yanagawa mentions the prebiotic significance (as a primitive helical template) arising from the supramolecular organization of these compounds. Further contributions, exploring the supramolecular scope regarding phospoliponucleosides (e.g. 5'-dioleylphosphatidyl derivatives of adenosine, uridine and cytidine) can be accounted to Baglioni, Luisi and Berti. This emerging field of amphiphiles is being investigated for surface behavior, supramolecular assembly and even drug ability. RESULTS A series of α/β-hydroxy fatty acids and α-amino fatty acids, covalently bound to nucleoside-5'-monophosphates via a hydroxyl or amino group on the fatty acid was examined for spontaneous self-assembly in spherical aggregates and their stability towards intramolecular cleavage. Staining the resulting hydrophobic aggregates with BODIPY-dyes followed by fluorescent microscopy gave several distinct images of vesicles varying from small, isolated spheres to higher order aggregates and large, multimicrometer sized particles. Other observations include rod-like vesicle precursors. NMR was used to assess the stability of a representative sample of nucleolipids. 1D 31P NMR revealed that β-hydroxy fatty acids containing nucleotides were pH-stable while the α-analogs are acid labile. Degradation products identified by [1H-31P] heteroTOCSY revealed that phosphoesters are cleaved between sugar and phosphate, while phosphoramidates are also cleaved at the lipid-phosphate bond. For the latter compounds, the ratio between both degradation pathways is influenced by the nucleobase moiety. However no oligomerization of nucleotides was observed; nor the formation of 3'-5'-cyclic nucleotides, possible intermediates for oligonucleotide synthesis. CONCLUSIONS The nucleolipids with a deoxyribose sugar moiety form small or large vesicles, rod-like structures, vesicle aggregates or large vesicles. Some of these aggregates can be considered as intermediate forms in vesicle formation or division. However, we could not observe nucleotide polymerization or cyclic nucleotide function of these nucleolipids, regardless of the sugar moiety that is investigated (deoxyribose, ribose, xylose). To unravel this observation, the chemical stability of the constructs was studied. While the nucleolipids containing β-hydroxy fatty acids are stable as well in base as in acid circumstances, others degraded in acidic conditions. Phosphoramidate nucleolipids hydrolyzed by P-N as well as P-O bond cleavage where the ratio between both pathways depends on the nucleobase. Diester constructs with an α-hydroxy stearic acid degraded exclusively by hydrolysis of the 5'-O-nucleoside ester bond. As the compounds are too stable and harsh conditions would destruct the material itself, more reactive species such as lipid imidazolates of nucleotides need to be synthesized to further analyze the potential polymerization process. Graphical AbstractVesicle information of a nucleolipid consisting of a nucleoside 5'-monophosphate and a α-hydroxy fatty acid.
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Affiliation(s)
- Kishore Lingam Gangadhara
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium
| | - Puneet Srivastava
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium
| | - Jef Rozenski
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium
| | - Henri-Philippe Mattelaer
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium ; Department of Chemistry, Molecular Design and Synthesis, KU Leuven, Leuven, Belgium
| | - Volker Leen
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven, Leuven, Belgium
| | - Wim Dehaen
- Department of Chemistry, Molecular Design and Synthesis, KU Leuven, Leuven, Belgium
| | - Johan Hofkens
- Department of Chemistry, Molecular Imaging and Photonics, KU Leuven, Leuven, Belgium
| | - Eveline Lescrinier
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium
| | - Piet Herdewijn
- Medicinal Chemistry, Rega Institute for Medical Research, KU Leuven, Leuven, Minderbroederstraat-10, 3000 Leuven, Belgium
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37
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Biotransformation of aromatic ketones and ketoesters with the non-conventional yeast Pichia glucozyma. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.10.133] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mtat D, Touati R, Ben Hassine B. Synthesis of enantiopure β-amino amides via a practical reductive amination of the corresponding β-keto amides. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Fan X, Rodríguez-Escrich C, Wang S, Sayalero S, Pericàs MA. Highly enantioselective cross-aldol reactions of acetaldehyde mediated by a dual catalytic system operating under site isolation. Chemistry 2014; 20:13089-93. [PMID: 25168085 DOI: 10.1002/chem.201404215] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/07/2022]
Abstract
Polystyrene-supported (PS) diarylprolinol catalysts 1 a (Ar = phenyl) and 1 b (Ar = 3,5-bis(trifluoromethyl)phenyl) have been developed. Operating under site-isolation conditions, PS-1 a/1 b worked compatibly with PS-bound sulfonic acid catalyst 2 to promote deoligomerization of paraldehyde and subsequent cross-aldol reactions of the resulting acetaldehyde in one pot, affording aldol products in high yields with excellent enantioselectivities. The effect of water on the performance of the catalytic system has been studied and its optimal amount (0.5 equiv) has been determined. The dual catalytic system (1/2) allows repeated recycling and reuse (10 cycles). The potential of this methodology is demonstrated by a two-step synthesis of a phenoperidine analogue (68% overall yield; 98% ee) and by the preparation of highly enantioenriched 1,3-diols 4 and 3-methylamino-1-arylpropanols 5, key intermediates in the synthesis of a variety of druglike structures.
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Affiliation(s)
- Xinyuan Fan
- Institute of Chemical Research of Catalonia (ICIQ), Avinguda Països Catalans 16, 43007, Tarragona (Spain), Fax: (+34) 977-920-243
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Li F, Zhou W, Zheng LS, Li L, Zheng ZJ, Xu LW. Ar-BINMOL–Derived Salan–Cu(II) Complex–Catalyzed Silyl-Reformatsky Reaction of Aromatic Aldehydes. SYNTHETIC COMMUN 2014. [DOI: 10.1080/00397911.2014.920509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Fei Li
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
| | - Wei Zhou
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
| | - Long-Sheng Zheng
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
| | - Li Li
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
| | - Zhan-Jiang Zheng
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
| | - Li-Wen Xu
- a Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, College of Material, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou , China
- b State Key Laboratory for Oxo Synthesis and Selective Oxidation , Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences , Lanzhou , China
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Mohanty S, Roy AK, Kiran SP, Rafael GE, Kumar KPV, Karmakar AC. Controlling the Exothermicity of O-Arylation by Evaporative Cooling during the Process Development of Fluoxetine Hydrochloride. Org Process Res Dev 2014. [DOI: 10.1021/op400279n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sandeep Mohanty
- Process
Research and Development, Dr. Reddy’s Laboratories Ltd., API
Plant, Bollaram-III, Plot No.’s 116, 126C, Survey No.157, S.V.
Co-operative Industrial Estate, IDA Bollaram, Jinnaram Mandal, Medak District, Hyderabad 502325, Andra Pradesh India
| | - Amrendra Kumar Roy
- Process
Research and Development, Dr. Reddy’s Laboratories Ltd., API
Plant, Bollaram-III, Plot No.’s 116, 126C, Survey No.157, S.V.
Co-operative Industrial Estate, IDA Bollaram, Jinnaram Mandal, Medak District, Hyderabad 502325, Andra Pradesh India
| | - S. Phani Kiran
- Process
Research and Development, Dr. Reddy’s Laboratories Ltd., API
Plant, Bollaram-III, Plot No.’s 116, 126C, Survey No.157, S.V.
Co-operative Industrial Estate, IDA Bollaram, Jinnaram Mandal, Medak District, Hyderabad 502325, Andra Pradesh India
| | - G. Eduardo Rafael
- Dr. Reddy’s de Mexico, Km 4.5 Carr. Fed. Cuernavaca-Cuautla, 62578 CIVAC Jiutepec, Morelos, Mexico
| | - K. P. Vinay Kumar
- Process
Research and Development, Dr. Reddy’s Laboratories Ltd., API
Plant, Bollaram-III, Plot No.’s 116, 126C, Survey No.157, S.V.
Co-operative Industrial Estate, IDA Bollaram, Jinnaram Mandal, Medak District, Hyderabad 502325, Andra Pradesh India
| | - A. Chandra Karmakar
- Process
Research and Development, Dr. Reddy’s Laboratories Ltd., API
Plant, Bollaram-III, Plot No.’s 116, 126C, Survey No.157, S.V.
Co-operative Industrial Estate, IDA Bollaram, Jinnaram Mandal, Medak District, Hyderabad 502325, Andra Pradesh India
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Wada M, Yoshizumi A, Furukawa Y, Kawabata H, Ueda M, Takagi H, Nakamori S. Cloning and Overexpression of theExiguobacteriumsp. F42 Gene Encoding a New Short Chain Dehydrogenase, Which Catalyzes the Stereoselective Reduction of Ethyl 3-Oxo-3-(2-thienyl)propanoate to Ethyl (S)-3-Hydroxy-3-(2-thienyl)propanoate. Biosci Biotechnol Biochem 2014; 68:1481-8. [PMID: 15277752 DOI: 10.1271/bbb.68.1481] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Exiguobacterium sp. F42 was screened as a producer of an enzyme catalyzing the NADPH-dependent stereoselective reduction of ethyl 3-oxo-3-(2-thienyl)propanoate (KEES) to ethyl (S)-3-hydroxy-3-(2-thienyl)propanoate ((S)-HEES). (S)-HEES is a key intermediate for the synthesis of (S)-duloxetine, a potent inhibitor of the serotonin and norepinephrine uptake carriers. The responsible enzyme (KEES reductase) was partially purified, and the gene encoding KEES reductase was cloned and sequenced via an inverse PCR approach. Sequence analysis of the gene for KEES reductase revealed that the enzyme was a member of the short chain dehydrogenase/reductase family. The probable NADPH-interacting site and 3 catalytic residues (Ser-Tyr-Lys) were fully conserved. The gene was highly expressed in Escherichia coli, and the gene product was purified to homogeneity from the recombinant E. coli by simpler procedures than from the original host. The molecular mass of the purified enzyme was 27,500 as determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, and 55,000 as determined by gel filtration chromatography. Our results show that this enzyme can be used for the practical production of (S)-HEES.
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Affiliation(s)
- Masaru Wada
- Department of Bioscience, Fukui Prefectural University, 4-1-1 Kenjyojima, Matsuoka-cho, Fukui 910-1195, Japan.
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De Vleeschouwer M, Sinnaeve D, Van den Begin J, Coenye T, Martins JC, Madder A. Rapid Total Synthesis of Cyclic Lipodepsipeptides as a Premise to Investigate their Self‐Assembly and Biological Activity. Chemistry 2014; 20:7766-75. [DOI: 10.1002/chem.201402066] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Matthias De Vleeschouwer
- Department of Organic Chemistry, Organic and Biomimetic Chemistry Research Group, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
- Department of Organic Chemistry, NMR and Structure Analysis Unit, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
| | - Davy Sinnaeve
- Department of Organic Chemistry, NMR and Structure Analysis Unit, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
| | - Jos Van den Begin
- Department of Organic Chemistry, Organic and Biomimetic Chemistry Research Group, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
| | - Tom Coenye
- Laboratory of Pharmaceutical Microbiology, Ghent University, Harelbekestraat 72, 9000 Ghent (Belgium)
| | - José C. Martins
- Department of Organic Chemistry, NMR and Structure Analysis Unit, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
| | - Annemieke Madder
- Department of Organic Chemistry, Organic and Biomimetic Chemistry Research Group, Ghent University, Krijgslaan 281 S4, 9000 Ghent (Belgium)
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Motloch P, Valterová I, Kotora M. Enantioselective Allylation of Thiophene-2-carbaldehyde: Formal Total Synthesis of Duloxetine. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300849] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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45
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Gangadhara KL, Lescrinier E, Pannecouque C, Herdewijn P. Hydroxy fatty acids for the delivery of dideoxynucleosides as anti-HIV agents. Bioorg Med Chem Lett 2013; 24:817-20. [PMID: 24411122 DOI: 10.1016/j.bmcl.2013.12.093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 12/20/2013] [Accepted: 12/22/2013] [Indexed: 01/01/2023]
Abstract
A series of α- and β-carboxylated phospholipid prodrugs of dideoxy nucleosides have been synthesized and evaluated against HIV. An increase in biological effect with a factor of 500 has only been observed for the adenine nucleoside, which suggests that this prodrug approach is base specific.
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Affiliation(s)
- Kishore Lingam Gangadhara
- Medicinal Chemistry, Department of Pharmaceutical Sciences, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat-10, 3000 Leuven, Belgium
| | - Eveline Lescrinier
- Medicinal Chemistry, Department of Pharmaceutical Sciences, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat-10, 3000 Leuven, Belgium
| | - Christophe Pannecouque
- Laboratory of Virology and Chemotherapy, Department of Microbiology and Immunology, Rega Institute for Medical Research, KU Leuven, Kapucijnenvoer 33, 3000 Leuven, Belgium
| | - Piet Herdewijn
- Medicinal Chemistry, Department of Pharmaceutical Sciences, Rega Institute for Medical Research, KU Leuven, Minderbroedersstraat-10, 3000 Leuven, Belgium.
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Expedient synthesis of novel β-ketoesters from the Mizoroki–Heck coupling of ethyl 3-ethoxyacrylate with aryl and pyridyl halides. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Borowiecki P, Bretner M. Studies on the chemoenzymatic synthesis of (R)- and (S)-methyl 3-aryl-3-hydroxypropionates: the influence of toluene-pretreatment of lipase preparations on enantioselective transesterifications. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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48
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Enantioselective bioreduction of ethyl 4,4,4-trihalide-3-oxobutanoate by Kluyveromyces marxianus. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.116] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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49
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Toribatake K, Zhou L, Tsuruta A, Nishiyama H. Asymmetric β-boration of α,β-unsaturated carbonyl compounds with chiral Rh[bis(oxazolinyl)phenyl] catalysts. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.086] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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50
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Wang J, Liu D, Liu Y, Zhang W. Asymmetric hydrogenation of β-amino ketones with the bimetallic complex RuPHOX-Ru as the chiral catalyst. Org Biomol Chem 2013; 11:3855-61. [DOI: 10.1039/c3ob40135a] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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