1
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X-ray Structures of 3-Acetyloxazolidin-2-one, 3-Acetyloxazolin-2-one and Oxazolin-2(3H)-one. MOLBANK 2022. [DOI: 10.3390/m1445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The X-ray structures of three simple heterocyclic compounds have been obtained for the first time. Structures of both 3-acetyloxazolidin-2-one 1 and its unsaturated analogue 3-acetyloxazolin-2-one 3 show a planar imide nitrogen with the exocyclic C=O oriented anti to the ring N–C(=O) bond and negligible intermolecular interactions, a pattern consistent with previously reported analogues. In contrast the parent NH heterocycle, oxazolin-2(3H)-one 4, exists as hydrogen bonded dimers of two closely similar independent molecules but an unusual type of disorder involving exchange of the ring O and NH positions results in a very high R factor.
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2
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Abstract
In this contribution, we provide a comprehensive overview of acyclic twisted amides, covering the literature since 1993 (the year of the first recognized report on acyclic twisted amides) through June 2020. The review focuses on classes of acyclic twisted amides and their key structural properties, such as amide bond twist and nitrogen pyramidalization, which are primarily responsible for disrupting nN to π*C═O conjugation. Through discussing acyclic twisted amides in comparison with the classic bridged lactams and conformationally restricted cyclic fused amides, the reader is provided with an overview of amidic distortion that results in novel conformational features of acyclic amides that can be exploited in various fields of chemistry ranging from organic synthesis and polymers to biochemistry and structural chemistry and the current position of acyclic twisted amides in modern chemistry.
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Affiliation(s)
- Guangrong Meng
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jin Zhang
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States.,College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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3
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Ma J, Zhou Q, Song G, Song Y, Zhao G, Ding K, Zhao B. Enantioselective Synthesis of Pyroglutamic Acid Esters from Glycinate via Carbonyl Catalysis. Angew Chem Int Ed Engl 2021; 60:10588-10592. [PMID: 33554429 DOI: 10.1002/anie.202017306] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/28/2021] [Indexed: 12/18/2022]
Abstract
Direct α-functionalization of NH2 -free glycinates with relatively weak electrophiles such as α,β-unsaturated esters still remains a big challenge in organic synthesis. With chiral pyridoxal 5 d as a carbonyl catalyst, direct asymmetric conjugated addition at the α-C of glycinate 1 a with α,β-unsaturated esters 2 has been successfully realized, to produce various chiral pyroglutamic acid esters 4 in 14-96 % yields with 81-97 % ee's after in situ lactamization. The trans and cis diastereomers can be obtained at the same time by chromatography and both of them can be easily converted into chiral 4-substituted pyrrolidin-2-ones such as Alzheimer's drug Rolipram (11) with the same absolute configuration via tert-butyl group removal and subsequent Barton decarboxylation.
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Affiliation(s)
- Jiguo Ma
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China.,State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Qinghai Zhou
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China
| | - Guanshui Song
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China
| | - Yongchang Song
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China
| | - Guoqing Zhao
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China
| | - Kuiling Ding
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Baoguo Zhao
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, College of Chemistry and Materials Science, Shanghai Normal University, Shanghai, 200234, China
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4
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Ma J, Zhou Q, Song G, Song Y, Zhao G, Ding K, Zhao B. Enantioselective Synthesis of Pyroglutamic Acid Esters from Glycinate via Carbonyl Catalysis. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jiguo Ma
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Qinghai Zhou
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
| | - Guanshui Song
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
| | - Yongchang Song
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
| | - Guoqing Zhao
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
| | - Kuiling Ding
- State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Baoguo Zhao
- The Education Ministry Key Lab of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials College of Chemistry and Materials Science Shanghai Normal University Shanghai 200234 China
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5
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Staniland S, Angelini T, Pushpanath A, Bornadel A, Siirola E, Bisagni S, Zanotti-Gerosa A, Domínguez B. Biocatalytic Reduction of Activated Cinnamic Acid Derivatives : Asymmetric reduction of C=C double bonds using Johnson Matthey enzymes. JOHNSON MATTHEY TECHNOLOGY REVIEW 2020. [DOI: 10.1595/205651320x16001815466116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The asymmetric reduction of C=C double bonds is a sought-after chemical transformation to obtain chiral molecules used in the synthesis of fine chemicals. Biocatalytic C=C double bond reduction is a particularly interesting transformation complementary to more established chemocatalytic
methods. The enzymes capable of catalysing this reaction are called ene-reductases (ENEs). For the reaction to take place, ENEs need an electron withdrawing group (EWG) in conjugation with the double bond. Especially favourable EWGs are carbonyls and nitro groups; other EWGs, such as carboxylic
acids, esters or nitriles, often give poor results. In this work, a substrate engineering strategy is proposed whereby a simple transformation of the carboxylic acid into a fluorinated ester or a cyclic imide allows to increase the ability of ENEs to reduce the conjugated double bond. Up to
complete conversion of the substrates tested was observed with enzymes ENE-105 and *ENE-69.
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Affiliation(s)
- Samantha Staniland
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | - Tommaso Angelini
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | - Ahir Pushpanath
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | - Amin Bornadel
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | - Elina Siirola
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | - Serena Bisagni
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
| | | | - Beatriz Domínguez
- Johnson Matthey 260 Cambridge Science Park, Milton Road, Cambridge, CB4 0WE UK
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6
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Chen L, Zhang X, Shi KJ, Leng HJ, Li QZ, Liu Y, Li JH, Wang QW, Li JL. Bifunctional Brønsted Base Catalyzed [3 + 3] Annulations of Indolin-2-imines and α,β-Unsaturated Imides: An Enantioselective Approach to α-Carbolinones. J Org Chem 2020; 85:9454-9463. [PMID: 32687362 DOI: 10.1021/acs.joc.0c00957] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Asymmetric construction of α-carbolinones with easily available starting materials has recently attracted considerable attention from the synthesis community, and the development of effective catalysis for this target is in great demand. Here, a bifunctional Brønsted base catalyzed asymmetric [3 + 3] cyclization of indolin-2-imines and α,β-unsaturated N-acylated succinimides was developed by using the strategy of noncovalent bonding catalysis. With this organocatalytic protocol, a variety of tetrahydro-α-carbolinones bearing different substituents were synthesized with up to 99% yield and up to 96:4 er.
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Affiliation(s)
- Lin Chen
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiang Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ke-Jin Shi
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
| | - Hai-Jun Leng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
| | - Qing-Zhu Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
| | - Yu Liu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
| | - Jiang-Hong Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
| | - Qi-Wei Wang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jun-Long Li
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, Chengdu University, Chengdu 610052, China
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7
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Mei H, Han J, White S, Graham DJ, Izawa K, Sato T, Fustero S, Meanwell NA, Soloshonok VA. Tailor-Made Amino Acids and Fluorinated Motifs as Prominent Traits in Modern Pharmaceuticals. Chemistry 2020; 26:11349-11390. [PMID: 32359086 DOI: 10.1002/chem.202000617] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 04/23/2020] [Indexed: 12/11/2022]
Abstract
Structural analysis of modern pharmaceutical practices allows for the identification of two rapidly growing trends: the introduction of tailor-made amino acids and the exploitation of fluorinated motifs. Curiously, the former represents one of the most ubiquitous classes of naturally occurring compounds, whereas the latter is the most xenobiotic and comprised virtually entirely of man-made derivatives. Herein, 39 selected compounds, featuring both of these traits in the same molecule, are profiled. The total synthesis, source of the corresponding amino acids and fluorinated residues, and medicinal chemistry aspects and biological properties of the molecules are discussed.
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Affiliation(s)
- Haibo Mei
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P.R. China
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, P.R. China
| | - Sarah White
- Oakwood Chemical, Inc., 730 Columbia Hwy. N, Estill, SC, 29918, USA
| | - Daniel J Graham
- Oakwood Chemical, Inc., 730 Columbia Hwy. N, Estill, SC, 29918, USA
| | - Kunisuke Izawa
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka, 533-0024, Japan
| | - Tatsunori Sato
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka, 533-0024, Japan
| | - Santos Fustero
- Departamento de Química Orgánica, Universidad de Valencia, 46100, Burjassot, Valencia, Spain
| | - Nicholas A Meanwell
- Department of Small Molecule Drug Discovery, Bristol-Myers Squibb Research and Development, P.O. Box 4000, Princeton, NJ, 08543-4000, USA
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018, San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013, Bilbao, Spain
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8
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Levitskiy OA, Aglamazova OI, Soloshonok VA, Moriwaki H, Magdesieva TV. Which Stereoinductor Is Better for Asymmetric Functionalization of α-Amino Acids in a Nickel(II) Coordination Environment? Experimental and DFT Considerations. Chemistry 2020; 26:7074-7082. [PMID: 32187746 DOI: 10.1002/chem.201905708] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Indexed: 12/17/2022]
Abstract
The results of extended comparative investigation of nickel(II) Schiff base complexes (containing various auxiliary chiral moieties) commonly used as a methodological platform for the asymmetric synthesis of tailor-made α-amino acids are provided. The following issues are addressed: 1) redox activity (determining the possibility for electrochemically induced reactions); 2) quantitative estimation of the reactivity of deprotonated complexes towards electrophiles; and 3) quantum-chemical estimation of noncovalent interactions in the metal coordination environment (which shed light on the origin of the stereochemical outcome observed for different stereoinductors). Possible mechanisms that determine the relationship between the stereochemical configuration of a molecule and its electronic structure are discussed. The DFT-calculated HOMO-LUMO energies and localization, as well as relative energies for the (S)- and (R)-alanine derivatives, that determine the stereoinduction efficiency in thermodynamically controlled reactions in nickel(II) coordination are provided. The computational data are supported by experimental results on the monobenzylation of glycine derivatives.
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Affiliation(s)
- Oleg A Levitskiy
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
| | - Olga I Aglamazova
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of Basque Country UPV/EHU, Paseo Manuel Lardizabal 3, 20018, San Sebastian, Spain.,IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza, Bizkaia, 48011, Bilbao, Spain
| | - Hiroki Moriwaki
- Hamari Chemical Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka, 533-0024, Japan
| | - Tatiana V Magdesieva
- Department of Chemistry, Lomonosov Moscow State University, Leninskie Gory 1/3, Moscow, 119991, Russia
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9
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Nagaoka K, Mei H, Guo Y, Han J, Konno H, Moriwaki H, Soloshonok VA. Michael addition reactions of chiral glycine Schiff base Ni (II)‐complex with 1‐(1‐phenylsulfonyl)benzene. Chirality 2020; 32:885-893. [DOI: 10.1002/chir.23203] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Keita Nagaoka
- School of Chemistry and Chemical Engineering, State of Key Laboratory of CoordinationNanjing University Nanjing China
- Department of Biological Engineering, Graduate School of Science and EngineeringYamagata University Yamagata Japan
| | - Haibo Mei
- School of Chemistry and Chemical Engineering, State of Key Laboratory of CoordinationNanjing University Nanjing China
| | - Yunjie Guo
- School of Chemistry and Chemical Engineering, State of Key Laboratory of CoordinationNanjing University Nanjing China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State of Key Laboratory of CoordinationNanjing University Nanjing China
| | - Hiroyuki Konno
- Department of Biological Engineering, Graduate School of Science and EngineeringYamagata University Yamagata Japan
| | | | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of ChemistryUniversity of the Basque Country UPV/EHU San Sebastián Spain
- IKERBASQUE, Basque Foundation for Science Bilbao Spain
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10
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Romoff TT, Ignacio BG, Mansour N, Palmer AB, Creighton CJ, Abe H, Moriwaki H, Han J, Konno H, Soloshonok VA. Large-Scale Synthesis of the Glycine Schiff Base Ni(II) Complex Derived from (S)- and (R)-N-(2-Benzoyl-4-chlorophenyl)-1-[(3,4-dichlorophenyl)methyl]-2-pyrrolidinecarboxamide. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.9b00399] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Todd T. Romoff
- Hamari Chemicals USA, San Diego, California 92121, United States
| | | | - Noel Mansour
- Hamari Chemicals USA, San Diego, California 92121, United States
| | - Andrew B. Palmer
- Hamari Chemicals USA, San Diego, California 92121, United States
| | | | - Hidenori Abe
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Hiroyuki Konno
- Department of Biochemical Engineering, Graduate School of Science and Technology, Yamagata University,
Yonezawa, Yamagata 992-8510, Japan
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Spain
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11
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Han J, Takeda R, Liu X, Konno H, Abe H, Hiramatsu T, Moriwaki H, Soloshonok VA. Preparative Method for Asymmetric Synthesis of ( S)-2-Amino-4,4,4-trifluorobutanoic Acid. Molecules 2019; 24:E4521. [PMID: 31835583 PMCID: PMC6943542 DOI: 10.3390/molecules24244521] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/06/2019] [Accepted: 12/09/2019] [Indexed: 11/30/2022] Open
Abstract
Enantiomerically pure derivatives of 2-amino-4,4,4-trifluorobutanoic acid are in great demand as bioisostere of leucine moiety in the drug design. Here, we disclose a method specifically developed for large-scale (>150 g) preparation of the target (S)-N-Fmoc-2-amino-4,4,4-trifluorobutanoic acid. The method employs a recyclable chiral auxiliary to form the corresponding Ni(II) complex with glycine Schiff base, which is alkylated with CF3-CH2-I under basic conditions. The resultant alkylated Ni(II) complex is disassembled to reclaim the chiral auxiliary and 2-amino-4,4,4-trifluorobutanoic acid, which is in situ converted to the N-Fmoc derivative. The whole procedure was reproduced several times for consecutive preparation of over 300 g of the target (S)-N-Fmoc-2-amino-4,4,4-trifluorobutanoic acid.
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Affiliation(s)
- Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; (J.H.); (X.L.)
| | - Ryosuke Takeda
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Xinyi Liu
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, Jiangsu, China; (J.H.); (X.L.)
| | - Hiroyuki Konno
- Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992‑8510, Japan;
| | - Hidenori Abe
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Takahiro Hiramatsu
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan; (R.T.); (T.H.)
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013 Bilbao, Spain
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12
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Han J, Romoff TT, Moriwaki H, Konno H, Soloshonok VA. Development of Hamari Ligands for Practical Asymmetric Synthesis of Tailor-Made Amino Acids. ACS OMEGA 2019; 4:18942-18947. [PMID: 31763515 PMCID: PMC6868592 DOI: 10.1021/acsomega.9b02940] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Accepted: 10/29/2019] [Indexed: 06/10/2023]
Abstract
Enantiomerically pure tailor-made amino acids are in extremely high demand in nearly every sector of the health-related industries. In particular, the rapidly growing number of amino-acid-based pharmaceuticals calls for the development of advanced synthetic approaches featuring practicality and commercial viability. Here we provide a brief summary of the development of axially chiral tridentate Hamari ligands and their application for general asymmetric synthesis of various structural types of amino acids. The methodological diversity includes: dynamic kinetic resolution and (S)-/(R)-interconversion of unprotected amino acids and homologation of nucleophilic glycine equivalents via alkyl halide alkylation reactions as well as multiple-step transformations allowing preparation of polyfunctional and cyclic derivatives. The practicality of these methods is critically discussed.
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Affiliation(s)
- Jianlin Han
- College
of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Todd T. Romoff
- Hamari
Chemicals USA, San Diego, California 92121, United States
| | - Hiroki Moriwaki
- Hamari
Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka 533-0024, Japan
| | - Hiroyuki Konno
- Department
of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University, Yonezawa, Yamagata 992-8510, Japan
| | - Vadim A. Soloshonok
- Department
of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain
- IKERBASQUE,
Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013 Bilbao, Spain
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13
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Mei H, Han J, Klika KD, Izawa K, Sato T, Meanwell NA, Soloshonok VA. Applications of fluorine-containing amino acids for drug design. Eur J Med Chem 2019; 186:111826. [PMID: 31740056 DOI: 10.1016/j.ejmech.2019.111826] [Citation(s) in RCA: 119] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/21/2019] [Accepted: 10/26/2019] [Indexed: 01/26/2023]
Abstract
Fluorine-containing amino acids are becoming increasingly prominent in new drugs due to two general trends in the modern pharmaceutical industry. Firstly, the growing acceptance of peptides and modified peptides as drugs; and secondly, fluorine editing has become a prevalent protocol in drug-candidate optimization. Accordingly, fluorine-containing amino acids represent one of the more promising and rapidly developing areas of research in organic, bio-organic and medicinal chemistry. The goal of this Review article is to highlight the current state-of-the-art in this area by profiling 42 selected compounds that combine fluorine and amino acid structural elements. The compounds under discussion represent pharmaceutical drugs currently on the market, or in clinical trials as well as examples of drug-candidates that although withdrawn from development had a significant impact on the progress of medicinal chemistry and/or provided a deeper understanding of the nature and mechanism of biological action. For each compound, we present features of biological activity, a brief history of the design principles and the development of the synthetic approach, focusing on the source of tailor-made amino acid structures and fluorination methods. General aspects of the medicinal chemistry of fluorine-containing amino acids and synthetic methodology are briefly discussed.
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Affiliation(s)
- Haibo Mei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Jianlin Han
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Karel D Klika
- Molecular Structure Analysis, German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280, D-69120 Heidelberg, Germany
| | - Kunisuke Izawa
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka, 533-0024, Japan.
| | - Tatsunori Sato
- Hamari Chemicals Ltd., 1-4-29 Kunijima, Higashi-Yodogawa-ku, Osaka, 533-0024, Japan
| | - Nicholas A Meanwell
- Department of Discovery Chemistry, Bristol-Myers Squibb Research and Development, PO Box 4000, Princeton, NJ, 08543-4000, United States.
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018, San Sebastián, Spain; IKERBASQUE, Basque Foundation for Science, María Díaz de Haro 3, Plaza Bizkaia, 48013, Bilbao, Spain.
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14
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Moschner J, Stulberg V, Fernandes R, Huhmann S, Leppkes J, Koksch B. Approaches to Obtaining Fluorinated α-Amino Acids. Chem Rev 2019; 119:10718-10801. [PMID: 31436087 DOI: 10.1021/acs.chemrev.9b00024] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Fluorine does not belong to the pool of chemical elements that nature uses to build organic matter. However, chemists have exploited the unique properties of fluorine and produced countless fluoro-organic compounds without which our everyday lives would be unimaginable. The incorporation of fluorine into amino acids established a completely new class of amino acids and their properties, and those of the biopolymers constructed from them are extremely interesting. Increasing interest in this class of amino acids caused the demand for robust and stereoselective synthetic protocols that enable straightforward access to these building blocks. Herein, we present a comprehensive account of the literature in this field going back to 1995. We place special emphasis on a particular fluorination strategy. The four main sections describe fluorinated versions of alkyl, cyclic, aromatic amino acids, and also nickel-complexes to access them. We progress by one carbon unit increments. Special cases of amino acids for which there is no natural counterpart are described at the end of each section. Synthetic access to each of the amino acids is summarized in form of a table at the end of this article with the aim to make the information easily accessible to the reader.
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Affiliation(s)
- Johann Moschner
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Valentina Stulberg
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Rita Fernandes
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Susanne Huhmann
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Jakob Leppkes
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
| | - Beate Koksch
- Department of Biology, Chemistry and Pharmacy, Institute of Chemistry and Biochemistry , Freie Universität Berlin , Takustr. 3 , 14195 Berlin , Germany
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15
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Zhang L, Zhang W, Mei H, Han J, Soloshonok VA, Pan Y. Catalytic asymmetric aldol addition reactions of 3-fluoro-indolinone derived enolates. Org Biomol Chem 2018; 15:311-315. [PMID: 27910989 DOI: 10.1039/c6ob02454h] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reported herein is a Cu(i)/bisoxazoline ligand-catalyzed aldol reaction of unprotected tertiary enolates generated in situ from 3-(1,1-dihydroxy-2,2,2-trifluoroethyl)-substituted derivatives of 3-fluoro-2-oxindoles. A range of α-fluoro-β-aryl/hetaryl/alkyl-β-hydroxy-indolin-2-ones containing C-F quaternary stereogenic centers of high pharmaceutical importance were furnished in good yields and satisfactory diastereo- and enantioselectivities. The reactions were conducted under operationally convenient conditions and displayed wide substrate/functional group generality including unprotected N-H on the tertiary enolates, and aromatic, hetero-aromatic and aliphatic aldehydes.
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Affiliation(s)
- Lijun Zhang
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
| | - Wenzhong Zhang
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
| | - Haibo Mei
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain. and IKERBASQUE, Basque Foundation for Science Department, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
| | - Yi Pan
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
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16
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Zhang W, Wang X, Zhu B, Zhu D, Han J, Wzorek A, Sato A, Soloshonok VA, Zhou J, Pan Y. Diastereoselective Regiodivergent Mannich Versus Tandem Mannich-Cyclization Reactions. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701066] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenzhong Zhang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Xin Wang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Biqing Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Di Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Alicja Wzorek
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- Institute of Chemistry; Jan Kochanowski University in Kielce; Świętokrzyska 15G 25-406 Kielce Poland
| | - Azusa Sato
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- School of Medicine; Tokyo Women's Medical University; 8-1Kawada-cho, Shinjuku-ku 1628666 Tokyo Japan
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science Department Alameda Urquijo 36-5; Plaza Bizkaia 48011 Bilbao Spain
| | - Jie Zhou
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
| | - Yi Pan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Jiangsu Key Laboratory of Advanced Organic Materials; Nanjing University; 210093, People's Republic of China
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17
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Wang Y, Song X, Wang J, Moriwaki H, Soloshonok VA, Liu H. Recent approaches for asymmetric synthesis of α-amino acids via homologation of Ni(II) complexes. Amino Acids 2017; 49:1487-1520. [DOI: 10.1007/s00726-017-2458-6] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Accepted: 06/24/2017] [Indexed: 12/17/2022]
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18
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Sha W, Zhang L, Wu X, Mei H, Han J, Soloshonok VA, Pan Y. Detrifluoroacetylative cascade reactions of bicyclic fluoro-enolates with ortho -phthalaldehyde: Aspects of reactivity, diastereo- and enantioselectivity. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2016.06.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Zhang W, Sha W, Zhu Y, Han J, Soloshonok VA, Pan Y. Asymmetric Synthesis of Quaternary β-Perfluorophenyl-β-amino-indolin-2-ones. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601645] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Wenzhong Zhang
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; 210093 Nanjing China
| | - Wanxing Sha
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; 210093 Nanjing China
| | - Yi Zhu
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; 210093 Nanjing China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; 210093 Nanjing China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I; Faculty of Chemistry; University of the Basque Country UPV/EHU; Paseo Manuel Lardizábal 3 20018 San Sebastián Spain
- IKERBASQUE; Basque Foundation for Science; Alameda Urquijo 36-5, Plaza Bizkaia 48011 Bilbao Spain
| | - Yi Pan
- School of Chemistry and Chemical Engineering; State Key Laboratory of Coordination Chemistry; Nanjing University; 210093 Nanjing China
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20
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Xie C, Sha W, Zhu Y, Han J, Soloshonok VA, Pan Y. Asymmetric synthesis of C–F quaternary α-fluoro-β-amino-indolin-2-ones via Mannich addition reactions; facets of reactivity, structural generality and stereochemical outcome. RSC Adv 2017. [DOI: 10.1039/c6ra27710a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An asymmetric detrifluoroacetylative Mannich reaction between in situ generated tertiary enolates and sulfinyl-imines has been explored. The reaction provides a new access to α-fluoro-β-amino-indolin-2-ones with tetrasubstituted fluorinated stereogenic center.
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Affiliation(s)
- Chen Xie
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Wanxing Sha
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Yi Zhu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Jianlin Han
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of the Basque Country UPV/EHU
- 20018 San Sebastián
- Spain
| | - Yi Pan
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
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21
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Xie C, Zhang L, Sha W, Soloshonok VA, Han J, Pan Y. Detrifluoroacetylative in Situ Generation of Free 3-Fluoroindolin-2-one-Derived Tertiary Enolates: Design, Synthesis, and Assessment of Reactivity toward Asymmetric Mannich Reactions. Org Lett 2016; 18:3270-3. [PMID: 27305459 DOI: 10.1021/acs.orglett.6b01516] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The discovery of detrifluoroacetylative in situ generation of a new type of fluorinated amide enolates derived from 3-fluoroindolin-2-one and their asymmetric Mannich additions with sulfinylaldimines bearing fluoroalkyl groups is reported, which afforded α-fluoro-β-(fluoroalkyl)-β-aminoindolin-2-ones containing C-F quaternary stereogenic centers with excellent yields and high diastereoselectivities.
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Affiliation(s)
- Chen Xie
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China
| | - Lijun Zhang
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China
| | - Wanxing Sha
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China
| | - Vadim A Soloshonok
- Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU , Paseo Manuel Lardizábal 3, 20018 San Sebastián, Spain.,IKERBASQUE, Basque Foundation for Science, Alameda Urquijo 36-5, Plaza Bizkaia, 48011 Bilbao, Spain
| | - Jianlin Han
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China
| | - Yi Pan
- School of Chemistry and Chemical Engineering, State Key laboratory of Coordination Chemistry, Nanjing University , Nanjing 210093, China
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22
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Xie C, Dai Y, Mei H, Han J, Soloshonok VA, Pan Y. Asymmetric synthesis of quaternary α-fluoro-β-keto-amines via detrifluoroacetylative Mannich reactions. Chem Commun (Camb) 2016; 51:9149-52. [PMID: 25947253 DOI: 10.1039/c5cc02256h] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Efficient asymmetric detrifluoroacetylative Mannich addition reactions between 2-fluoro-1,3-di-ketones/hydrates and chiral N-sulfinyl-imines via C-C bond cleavage were reported, which afforded C-F quaternary α-fluoro-β-keto-amines with excellent yields and high diastereoselectivity.
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Affiliation(s)
- Chen Xie
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China.
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23
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Advanced asymmetric synthesis of (1R,2S)-1-amino-2-vinylcyclopropanecarboxylic acid by alkylation/cyclization of newly designed axially chiral Ni(II) complex of glycine Schiff base. Amino Acids 2015; 48:973-986. [DOI: 10.1007/s00726-015-2138-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/18/2015] [Indexed: 12/17/2022]
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24
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Asymmetric synthesis of β-trifluoromethyl-β-amino acids, including highly sterically constrained α,α-dialkyl derivatives. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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25
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Generalized Approach to Asymmetric Synthesis of β-Substituted β-Amino Acids Bearing CHF2, CBrF2, and CClF2Groups. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500252] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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26
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Xie C, Wu L, Han J, Soloshonok VA, Pan Y. Assembly of Fluorinated Quaternary Stereogenic Centers through Catalytic Enantioselective Detrifluoroacetylative Aldol Reactions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201500908] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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27
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Xie C, Wu L, Han J, Soloshonok VA, Pan Y. Assembly of Fluorinated Quaternary Stereogenic Centers through Catalytic Enantioselective Detrifluoroacetylative Aldol Reactions. Angew Chem Int Ed Engl 2015; 54:6019-23. [PMID: 25808758 DOI: 10.1002/anie.201500908] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/01/2015] [Indexed: 11/10/2022]
Abstract
A Cu-catalyzed asymmetric detrifluoroacetylative aldol addition reaction of 2-fluoro-1,3-diketones/hydrates to aldehydes in the presence of base and chiral bidentate ligand was developed. The reaction was carried out under convenient conditions and tolerated a wide range of substrates, resulting in fluorinated quaternary stereogenic α-fluoro-β-hydroxy ketone products with good chemical yields, diastereo- and enantioselectivities. This catalytic asymmetric detrifluoroacetylative aldol addition reaction provides a new approach for the preparation of biologically relevant products containing C-F quaternary stereogenic centers.
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Affiliation(s)
- Chen Xie
- School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, 22 Hankou Road, Nanjing, 210093 (China)
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28
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Wu L, Xie C, Mei H, Dai Y, Han J, Soloshonok VA, Pan Y. Synthesis of trifluoromethyl-containing vicinal diamines by asymmetric decarboxylative mannich addition reactions. J Org Chem 2015; 80:3187-94. [PMID: 25714116 DOI: 10.1021/acs.joc.5b00124] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Herein is reported a study of asymmetric decarboxylative Mannich addition reactions between (Ss)-N-t-butylsulfinyl-3,3,3-trifluoroacetaldimine and Schiff bases derived from various aldehydes and lithium 2,2-diphenylglycinate. These reactions proceed with excellent diastereoselectivities and good chemical yields, providing a practical method for preparation of trifluoromethyl-containing vicinal diamines. The procedures can be conducted under convenient conditions, rendering this approach of high synthetic value.
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Affiliation(s)
- Lingmin Wu
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
| | - Chen Xie
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
| | - Haibo Mei
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
| | - Yanling Dai
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
| | - Jianlin Han
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
| | - Vadim A Soloshonok
- ‡Department of Organic Chemistry I, Faculty of Chemistry, University of the Basque Country UPV/EHU, 20018 San Sebastian, Spain.,§IKERBASQUE, Basque Foundation for Science, 48011 Bilbao, Spain
| | - Yi Pan
- †School of Chemistry and Chemical Engineering, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China
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29
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Dai Y, Xie C, Wu L, Mei H, Soloshonok VA, Han J, Pan Y. Asymmetric synthesis of amino-benzothiazol derivatives by additions of 2-lithiated benzothiazoles to (S)-N-t-butylsulfinyl-ketimines. RSC Adv 2015. [DOI: 10.1039/c4ra15405c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We reported the asymmetric Mannich reactions between lithium-benzothiazoles and (S)-N-tert-butanesulfinylketimines, which gave unknown type of amino-benzothiazol derivatives of high pharmaceutical potential with up to 96% yields and 99 : 1 diastereoselectivities.
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Affiliation(s)
- Yanling Dai
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Chen Xie
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Lingmin Wu
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Haibo Mei
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of the Basque Country UPV/EHU
- 20018 San Sebastian
- Spain
| | - Jianlin Han
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
| | - Yi Pan
- School of Chemistry and Chemical Engineering
- State Key Laboratory of Coordination Chemistry
- Nanjing University
- Nanjing
- China
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30
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Parpart S, Petrosyan A, Ali Shah SJ, Adewale RA, Ehlers P, Grigoryan T, Mkrtchyan AF, Mardiyan ZZ, Karapetyan AJ, Tsaturyan AH, Saghyan AS, Iqbal J, Langer P. Synthesis of optically pure (S)-2-amino-5-arylpent-4-ynoic acids by Sonogashira reactions and their potential use as highly selective potent inhibitors of aldose reductase. RSC Adv 2015. [DOI: 10.1039/c5ra22407a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A new and convenient synthesis of optically pure (S)-2-amino-5-[aryl]pent-4-ynoic acids (alkynylated amino acids) is reported.
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Affiliation(s)
- Silvio Parpart
- Universität Rostock
- Institut für Chemie
- 18059 Rostock
- Germany
| | - Andranik Petrosyan
- Universität Rostock
- Institut für Chemie
- 18059 Rostock
- Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
| | - Syed Jawad Ali Shah
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- 22060 Abbottabad
- Pakistan
| | - Raji Akeem Adewale
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- 22060 Abbottabad
- Pakistan
| | - Peter Ehlers
- Universität Rostock
- Institut für Chemie
- 18059 Rostock
- Germany
| | - Tatevik Grigoryan
- Universität Rostock
- Institut für Chemie
- 18059 Rostock
- Germany
- Yerevan State University
| | - Anna F. Mkrtchyan
- SPC “Armbiotechnology” SNPO NAS RA
- 0056 Yerevan
- Armenia
- Yerevan State University
- Faculty of Pharmacology and Chemistry
| | | | | | | | - Ashot S. Saghyan
- SPC “Armbiotechnology” SNPO NAS RA
- 0056 Yerevan
- Armenia
- Yerevan State University
- Faculty of Pharmacology and Chemistry
| | - Jamshed Iqbal
- Centre for Advanced Drug Research
- COMSATS Institute of Information Technology
- 22060 Abbottabad
- Pakistan
| | - Peter Langer
- Universität Rostock
- Institut für Chemie
- 18059 Rostock
- Germany
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock
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31
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Kawashima A, Xie C, Mei H, Takeda R, Kawamura A, Sato T, Moriwaki H, Izawa K, Han J, Aceña JL, Soloshonok VA. Asymmetric synthesis of (1R,2S)-1-amino-2-vinylcyclopropanecarboxylic acid by sequential SN2–SN2′ dialkylation of (R)-N-(benzyl)proline-derived glycine Schiff base Ni(ii) complex. RSC Adv 2015. [DOI: 10.1039/c4ra12658k] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis of the title compound, a key structural fragment of several hepatitis C virus inhibitors, is described.
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Affiliation(s)
| | - Chen Xie
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Haibo Mei
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | | | | | | | | | | | - Jianlin Han
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - José Luis Aceña
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of The Basque Country UPV/EHU
- Spain
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of The Basque Country UPV/EHU
- Spain
- IKERBASQUE
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32
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Asymmetric synthesis of α-amino acids via homologation of Ni(II) complexes of glycine Schiff bases. Part 3: Michael addition reactions and miscellaneous transformations. Amino Acids 2014; 46:2047-73. [DOI: 10.1007/s00726-014-1764-5] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 05/08/2014] [Indexed: 12/17/2022]
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33
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Aceña JL, Sorochinsky AE, Moriwaki H, Sato T, Soloshonok VA. Synthesis of fluorine-containing α-amino acids in enantiomerically pure form via homologation of Ni(II) complexes of glycine and alanine Schiff bases. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2013.06.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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34
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Sorochinsky AE, Aceña JL, Moriwaki H, Sato T, Soloshonok VA. Asymmetric synthesis of α-amino acids via homologation of Ni(II) complexes of glycine Schiff bases; Part 1: alkyl halide alkylations. Amino Acids 2013; 45:691-718. [DOI: 10.1007/s00726-013-1539-4] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Accepted: 06/17/2013] [Indexed: 11/24/2022]
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35
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Lin D, Lv L, Wang J, Ding X, Jiang H, Liu H. Preparation of α-Alkyl-β-Amino Acids via β-Alanine Ni(II) Complex. J Org Chem 2011; 76:6649-56. [DOI: 10.1021/jo200971k] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daizong Lin
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of China and
| | - Li Lv
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People’s Republic of China
| | - Jiang Wang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of China and
| | - Xiao Ding
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of China and
| | - Hualiang Jiang
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of China and
| | - Hong Liu
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 555 Zu Chong Zhi Road, Shanghai 201203, People’s Republic of China and
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36
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Practical synthesis of fluorine-containing α- and β-amino acids: recipes from Kiev, Ukraine. Future Med Chem 2011; 1:793-819. [PMID: 21426081 DOI: 10.4155/fmc.09.70] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Naturally occurring compounds containing a C-F bond are extremely rare; only a handful of fluorine-containing carboxylic acids have been described so far. By contrast, man-made fluorine-containing derivatives of all major classes of biologically important compounds are extremely promising medicinal targets used in the elucidation of biochemical, metabolic transformations and the development of new pharmaceuticals. Among the fluorine-containing derivatives of natural products, fluorinated analogs of amino acids are of particular interest and medicinal potential. This article presents a concise review of various synthetic methods, developed by the Kiev's school of bioorganic chemistry, for the preparation of fluorine-containing analogs of α- and β-amino acids, α-hydroxy acids, amines, as well as their phosphorus and sulfur-derived compounds, in enantiomerically pure form. One of the major methodological goals of the study was practicality, which is understood by us as stereochemical generality, operational convenience and synthetic affordance for each reaction step and isolation of the target products. The synthetic methods developed by our group can be roughly divided in two general categories: fluorine-adaptation of known synthetic approaches and discovery of new reactions. The former approach is most prominently represented by asymmetric homologation of nucleophilic glycine equivalents using fluorinated substrates via alkyl halide alkylations, aldol and Michael addition reactions. A plethora of discovered unexpected reaction outcomes, in particular stereochemical, are emphasized in this review and the particular role of fluorine, in altering the 'normal' reaction result, is explained. The latter direction is notably represented by the novel 1,3-proton shift reaction, a biomimetic reductive amination of fluorinated carbonyl compounds to the corresponding amines and amino acids, as well as the development of α-fluoroalkyl epoxides as true fluorinated synthons for generalized asymmetric synthesis of various biologically relevant compounds. Despite the highly anticipated potential of fluorine-containing amino compounds, their medicinal chemistry still remains underexplored. The major obstacle, in our opinion, is that these selectively fluorinated compounds are generally unavailable to the medicinal chemists for comprehensive, systematic study. We hope this review of synthetic methods will highlight and bring attention to particular types of fluorinated amino acids and related compounds readily available on a laboratory scale using methods developed by our group.
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Didier D, Meddour A, Bezzenine-Lafollée S, Collin J. Samarium Iodobinaphtholate: An Efficient Catalyst for Enantioselective Aza-Michael Additions of O-Benzylhydroxylamine to N-Alkenoyloxazolidinones. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100041] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Smith DJ, Yap GPA, Kelley JA, Schneider JP. Enhanced stereoselectivity of a Cu(II) complex chiral auxiliary in the synthesis of Fmoc-L-γ-carboxyglutamic acid. J Org Chem 2011; 76:1513-20. [PMID: 21291260 PMCID: PMC3488861 DOI: 10.1021/jo101940k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
L-γ-Carboxyglutamic acid (Gla) is an uncommon amino acid that binds avidly to mineral surfaces and metal ions. Herein, we report the synthesis of N-α-Fmoc-L-γ-carboxyglutamic acid γ,γ'-tert-butyl ester (Fmoc-Gla(O(t)Bu)(2)-OH), a suitably protected analogue for Fmoc-based solid-phase peptide synthesis. The residue was synthesized using a novel chiral Cu(II) complex, whose structure-based design was inspired by the blue copper protein rusticyanin. The five-coordinate complex is formed by Shiff base formation between glycine and the novel ligand (S)-2-(N-(2-methylthio)benzylprolyl)aminobenzophenone in the presence of copper. Michael addition of di-tert-butyl methylenemalonate to the α-carbon of the glycine portion of the complex occurs in a diastereoselective fashion. The resulting (S,S)-complex diastereomer can be easily purified by chromatography. Metal complex decomposition followed by Fmoc protection affords the enantiomerically pure amino acid. With the use of this novel chiral complex, the asymmetric synthesis of Fmoc-Gla(O(t)Bu)(2)-OH was completed in nine steps from thiosalicylic acid in 14.5% overall yield.
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Affiliation(s)
- Daniel J. Smith
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702 USA
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716 USA
| | - Glenn P. A. Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716 USA
| | - James A. Kelley
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702 USA
| | - Joel P. Schneider
- Chemical Biology Laboratory, Center for Cancer Research, National Cancer Institute-Frederick, Frederick, MD 21702 USA
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39
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Lin D, Deng G, Wang J, Ding X, Jiang H, Liu H. Efficient Synthesis of Symmetrical α,α-Disubstituted β-Amino Acids and α,α-Disubstituted Aldehydes via Dialkylation of Nucleophilic β-Alanine Equivalent. J Org Chem 2010; 75:1717-22. [PMID: 20141112 DOI: 10.1021/jo902699t] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daizong Lin
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
| | - Guanghui Deng
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
| | - Jiang Wang
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
| | - Xiao Ding
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
| | - Hualiang Jiang
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
| | - Hong Liu
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 201203, People’s Republic of China
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40
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Abstract
From a scientific perspective, efforts to understand biology including what constitutes health and disease has become a chemical problem. However, chemists and biologists "see" the problems of understanding biology from different perspectives, and this has retarded progress in solving the problems especially as they relate to health and disease. This suggests that close collaboration between chemists and biologists is not only necessary but essential for progress in both the biology and chemistry that will provide solutions to the global questions of biology. This perspective has directed my scientific efforts for the past 45 years, and in this overview I provide my perspective of how the applications of synthetic chemistry, structural design, and numerous other chemical principles have intersected in my collaborations with biologists to provide new tools, new science, and new insights that were only made possible and fruitful by these collaborations.
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Affiliation(s)
- Victor J Hruby
- Department of Chemistry and Biochemistry, The University of Arizona, Tucson, Arizona 85721, USA.
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41
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Michael addition reactions between various nucleophilic glycine equivalents and (S,E)-1-enoyl-5-oxo-N-phenylpyrrolidine-2-carboxamide, an optimal type of chiral Michael acceptor in the asymmetric synthesis of β-phenyl pyroglutamic acid and related compounds. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.10.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Soloshonok VA, Ellis TK, Ueki H, Ono T. Resolution/deracemization of chiral alpha-amino acids using resolving reagents with flexible stereogenic centers. J Am Chem Soc 2009; 131:7208-9. [PMID: 19422236 DOI: 10.1021/ja9026055] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This work has demonstrated that a previously unexplored approach to separation of enantiomers via formation of diastereomeric derivatives with three stereogenic centers has obvious practical potential and deserves further systematic study. The design reported here is based on the unusual application of a configurationally unstable stereogenic nitrogen, which plays a key role in setting up the stereochemical match between the three stereogenic centers in the corresponding products.
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Affiliation(s)
- Vadim A Soloshonok
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA.
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43
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Ding X, Ye D, Liu F, Deng G, Liu G, Luo X, Jiang H, Liu H. Efficient Synthesis of α-Aryl-/Heteroaryl-Substituted β-Amino Acids via Ni(II) Complex through the Suzuki Coupling Reaction. J Org Chem 2009; 74:5656-9. [DOI: 10.1021/jo900469d] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiao Ding
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Deju Ye
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Fang Liu
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, Liaoning 110016, People's Republic of China
| | - Guanghui Deng
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Guannan Liu
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Xiaomin Luo
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Hualiang Jiang
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
| | - Hong Liu
- The Center for Drug Discovery and Design, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, 201203, People's Republic of China
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44
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Wang Y, Mao J, Pei W. A Mild Highly Efficient and Green Protocol for Preparation of N-alk-2′-Enoyl Cyclic Imides Using Basic Ionic Liquid [bmIm]OH as Base and Reaction Medium. JOURNAL OF CHEMICAL RESEARCH 2008. [DOI: 10.3184/030823408x356305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
An efficient and green protocol for the preparation of N-alk-2′-enoyl cyclic imides at room temperature was developed using a basic ionic liquid, 1-methyl-3-butylimidazolium hydroxide, [bmIm]OH, as a base and a reaction medium.
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Affiliation(s)
- Yongjiang Wang
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Key Laboratory of Agricultural Products Chemical and Biological Processing Technology of Zhejiang Province, Hangzhou 310023, P. R. China
| | - Jianwei Mao
- School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Key Laboratory of Agricultural Products Chemical and Biological Processing Technology of Zhejiang Province, Hangzhou 310023, P. R. China
| | - Wen Pei
- College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 310014, P. R. China
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45
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Rajalakshmi V, Vijayaraghavan VR, Varghese B, Raghavan A. Novel Michael addition products of bis(amino acidato)metal(II) complexes: synthesis, characterization, dye degradation, and oxidation properties. Inorg Chem 2008; 47:5821-30. [PMID: 18510292 DOI: 10.1021/ic800086y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Michael addition reactions of bis(amino acidato)metal(II) complexes (metal = copper, nickel, zinc; amino acid = glycine, dl-alanine, l-alanine) with acrylonitrile have been carried out under various experimental conditions in the absence of a base, resulting in mono- and disubstituted products in high yield, including partially hydrolyzed products. A reaction mechanism for the Michael addition on the nitrogen atom of the coordinated amino acid moiety, replacing the amino hydrogen atom(s), is proposed. All of the products have been characterized by Fourier transform infrared spectroscopy, electron paramagnetic resonance spectra, and elemental and electrochemical analyses. The single-crystal structures of bis( N-cyanoethylglycinato)copper(II) monohydrate ( 1a), diaquabis( N-cyanoethylglycinato)nickel(II), aquabis( N, N-dicyanoethylglycinato)copper(II) ( 2a), and bis[( N-propionamido- N-cyanoethyl)glycinato]copper(II) dihydrate ( 4a) have been confirmed by X-ray diffraction techniques. The products 1a, 2a, 4a, and bis( N-propionamidoglycinato)copper(II) monohydrate ( 3a) have been used as catalysts for the degradation of a phenol red dye and mild oxidation of various organic substrates in the presence of hydrogen peroxide. The monosubstituted complexes have been found to catalyze the reactions to a greater extent than the disubstituted complexes.
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Affiliation(s)
- V Rajalakshmi
- Department of Polymer Science, University of Madras, Guindy Campus, Chennai-600 025, India
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46
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Kawatsura M, Komatsu Y, Yamamoto M, Hayase S, Itoh T. Asymmetric conjugate addition of thiols to (E)-3-crotonoyloxazolidin-2-one by iron or cobalt/pybox catalyst. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.01.121] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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47
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Li CY, Tsai WJ, Damu AG, Lee EJ, Wu TS, Dung NX, Thang TD, Thanh L. Isolation and identification of antiplatelet aggregatory principles from the leaves of Piper lolot. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:9436-9442. [PMID: 17941696 DOI: 10.1021/jf071963l] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The methanolic extract of Piper lolot, having shown potent inhibitory activity on platelet aggregation induced by arachidonic acid (AA) and platelet activating factor (PAF), was subjected to activity-guided isolation to yield twelve new amide alkaloids, piperlotine A-L (1-12), along with twenty-nine known compounds. Their structures were elucidated on the basis of spectroscopic analysis. The isolated compounds were tested for their inhibitory activity on the rabbit platelet aggregation. The compounds piperlotine A (1), piperlotine C (3), piperlotine D (4), piperlotine E (5), 3-phenyl-1-(2,4,6-trihydroxyphenyl)propan-1-one (21), 3-(4-methoxyphenyl)-1-(2,4,6-trihydroxyphenyl)propan-1-one (22), 1-trans-cinnamoylpyrrolidine (24), sarmentine (26), pellitorine (27), methyl 3-phenylpropionate (32), and (10S)-10-hydroxypheophorbide a methyl ester (40) showed potent antiplatelet aggregation activity.
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Affiliation(s)
- Chia-Ying Li
- Department of Chemistry, National Cheng Kung University, Tainan, Taiwan
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48
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Selander N, Kipke A, Sebelius S, Szabó KJ. Petasis Borono-Mannich Reaction and Allylation of Carbonyl Compounds via Transient Allyl Boronates Generated by Palladium-Catalyzed Substitution of Allyl Alcohols. An Efficient One-Pot Route to Stereodefined α-Amino Acids and Homoallyl Alcohols. J Am Chem Soc 2007; 129:13723-31. [DOI: 10.1021/ja074917a] [Citation(s) in RCA: 119] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicklas Selander
- Contribution from the Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Andreas Kipke
- Contribution from the Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Sara Sebelius
- Contribution from the Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
| | - Kálmán J. Szabó
- Contribution from the Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106 91, Stockholm, Sweden
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49
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Yamada T, Okada T, Sakaguchi K, Ohfune Y, Ueki H, Soloshonok VA. Efficient asymmetric synthesis of novel 4-substituted and configurationally stable analogues of thalidomide. Org Lett 2007; 8:5625-8. [PMID: 17107088 DOI: 10.1021/ol0623668] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The preparation of new thalidomide derivatives 4-methyl-(3S,4R)-3a and 4-phenyl-(3S,4S)-3b starting from pyroglutamic acids (2R,3R)-7a and (2R,3S)-7b, possessing an inappropriate stereochemistry, was successfully realized due to stereochemically complete epimerization at the alpha-stereogenic center upon formation of the corresponding N-phthaloyl anhydrides 9a,b. The demonstrated conformational stability of these new thalidomide derivatives provides solid experimental evidence for practical feasibility of the approach described here to overcome the inherent problem of configurational instability of thalidomide by introducing an alkyl or aryl group in the C4 position. [reaction: see text].
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Affiliation(s)
- Takeshi Yamada
- Graduate School of Science, Osaka City University, Japan
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50
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Ellis TK, Ueki H, Yamada T, Ohfune Y, Soloshonok VA. Design, synthesis, and evaluation of a new generation of modular nucleophilic glycine equivalents for the efficient synthesis of sterically constrained alpha-amino acids. J Org Chem 2007; 71:8572-8. [PMID: 17064036 DOI: 10.1021/jo0616198] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new generation of modular achiral glycine equivalents have been evaluated with respect to their synthetic utility for the production of tailor-made, sterically constrained alpha-amino acids, which proved to be the most efficient approach developed to date for the synthesis of symmetrical alpha,alpha-disubstituted-alpha-amino acids. Among the new series of achiral glycine equivalents, one was found to be a superior glycine derivative for the Michael additions with various (R)- or (S)-N-(E-enoyl)-4-phenyl-1,3-oxazolidin-2-ones representing a general and practical synthesis of sterically constrained beta-substituted pyroglutamic acids. In particular, the application of these complexes allowed for the preparation of several beta-substituted pyroglutamic acids which include electron-releasing and sterically demanding substituents in the structure thus increasing the synthetic efficiency and expanding the generality of these Michael addition reactions.
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Affiliation(s)
- Trevor K Ellis
- Department of Chemistry and Biochemistry, University of Oklahoma, Norman, Oklahoma 73019, USA
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