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Recent reports on Pyridoxal derived Schiff base complexes. REV INORG CHEM 2021. [DOI: 10.1515/revic-2020-0026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Pyridoxal and Pyridoxal 5-phosphate are two among the six aqua soluble vitamers of vitamin B6. They can form Schiff bases readily due to the presence of aldehyde group. Schiff bases can offer diverse coordination possibilities for many transition metals as has been found in a large volume of research till now. The coordination complexes thus formed gives insight into the active core structure and enzymatic activities of vit B6 containing enzymes. Apart from that, these complexes have been found useful as catalysts for synthesis of fine chemicals, as sensors and for their diverse biological activities.
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Tokairin Y, Konno H, Noireau A, West C, Moriwaki H, Soloshonok VA, Nicolas C, Gillaizeau I. Asymmetric synthesis of the two enantiomers of β-phosphorus-containing α-amino acids via hydrophosphinylation and hydrophosphonylation of chiral Ni(ii)-complexes. Org Chem Front 2021. [DOI: 10.1039/d1qo00159k] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new approach for the synthesis of the two enantiomers of β-phosphorus-containing α-amino acids was developed via Michael addition of secondary phosphine oxides and dialkyl phosphites to chiral Ni(ii)-complexes of a dehydroalanine-Schiff base.
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Affiliation(s)
- Yoshinori Tokairin
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- 45100 Orléans
- France
| | - Hiroyuki Konno
- Department of Biochemical Engineering
- Graduate School of Science and Technology
- Yamagata University
- Yonezawa
- Japan
| | - Angéline Noireau
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- 45100 Orléans
- France
| | - Caroline West
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- 45100 Orléans
- France
| | | | - Vadim A. Soloshonok
- Department of Organic Chemistry I
- Faculty of Chemistry
- University of Basque County UPV/EHU
- 20018 San Sebastian
- Spain
| | - Cyril Nicolas
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- 45100 Orléans
- France
| | - Isabelle Gillaizeau
- Institute of Organic and Analytical Chemistry
- ICOA UMR 7311 CNRS
- Université d'Orléans
- 45100 Orléans
- France
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Liu J, Han J, Izawa K, Sato T, White S, Meanwell NA, Soloshonok VA. Cyclic tailor-made amino acids in the design of modern pharmaceuticals. Eur J Med Chem 2020; 208:112736. [PMID: 32966895 DOI: 10.1016/j.ejmech.2020.112736] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/03/2020] [Accepted: 08/04/2020] [Indexed: 12/15/2022]
Abstract
Tailor-made AAs are indispensable components of modern medicinal chemistry and are becoming increasingly prominent in new drugs. In fact, about 30% of small-molecule pharmaceuticals contain residues of tailor-made AAs or structurally related diamines and amino-alcohols. Cyclic tailor-made AAs present a particular value to rational structural design by virtue of their local conformational constraints and are widely used in lead optimization programs. The present review article highlights 34 compounds, all of which are derived from cyclic AAs, representing recently-approved, small-molecule pharmaceuticals as well as promising drug candidates currently in various phases of clinical study. For each compound, the discussion includes the discovery, therapeutic profile and optimized synthesis, with a focus on the preparation of cyclic tailor-made AA as the principal structural feature. The present review article is intended to serve as a reference source for organic, medicinal and process chemists along with other professionals working in the fields of drug design and pharmaceutical discovery.
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Affiliation(s)
- Jiang Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - Jianlin Han
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, Jiangsu, China
| | - 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
| | - Sarah White
- Oakwood Chemical, Inc, 730 Columbia Hwy. N, Estill, SC, 29918, USA
| | - Nicholas A Meanwell
- Department of Small Molecule Drug Discovery, Bristol Myers Squibb Research and Early Development, PO Box, 4000, Princeton, NJ, 08543 4000, United States
| | - 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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Asymmetric Synthesis of Tailor-Made Amino Acids Using Chiral Ni(II) Complexes of Schiff Bases. An Update of the Recent Literature. Molecules 2020; 25:molecules25122739. [PMID: 32545684 PMCID: PMC7356839 DOI: 10.3390/molecules25122739] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 06/11/2020] [Accepted: 06/11/2020] [Indexed: 12/04/2022] Open
Abstract
Tailor-made amino acids are indispensable structural components of modern medicinal chemistry and drug design. Consequently, stereo-controlled preparation of amino acids is the area of high research activity. Over last decade, application of Ni(II) complexes of Schiff bases derived from glycine and chiral tridentate ligands has emerged as a leading methodology for the synthesis of various structural types of amino acids. This review article summarizes examples of asymmetric synthesis of tailor-made α-amino acids via the corresponding Ni(II) complexes, reported in the literature over the last four years. A general overview of this methodology is provided, with the emphasis given to practicality, scalability, cost-structure and recyclability of the chiral tridentate ligands.
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Oyama K, Han J, Moriwaki H, Soloshonok VA, Konno H. Synthesis of Ahod Moiety of Ralstonin A Using Amino Acid
Schiff
Base Ni(II)‐Complex Chemistry. Helv Chim Acta 2020. [DOI: 10.1002/hlca.202000077] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Kie Oyama
- Graduate School of Science and EngineeringYamagata University Yonezawa Yamagata 992-8510 Japan
| | - Jianlin Han
- College of Chemical EngineeringNanjing Forestry University Nanjing 210037 P. R. China
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd. 1-4-29 Kunijima, Higashi-Yodogawa-ku Osaka 533-0024 Japan
| | - Vadim A. Soloshonok
- Department of Organic Chemistry IFaculty of ChemistryUniversity 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
| | - Hiroyuki Konno
- Graduate School of Science and EngineeringYamagata University Yonezawa Yamagata 992-8510 Japan
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Tokairin Y, Shigeno Y, Han J, Röschenthaler G, Konno H, Moriwaki H, Soloshonok VA. Asymmetric Synthesis of 4,4-(Difluoro)glutamic Acid via Chiral Ni(II)-Complexes of Dehydroalanine Schiff Bases. Effect of the Chiral Ligands Structure on the Stereochemical Outcome. ChemistryOpen 2020; 9:93-96. [PMID: 32015956 PMCID: PMC6988766 DOI: 10.1002/open.201900343] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 01/05/2020] [Indexed: 12/18/2022] Open
Abstract
Four differently substituted chiral Ni(II)-complexes of dehydroalanine Schiff base were prepared and reacted with BrCF2COOEt/Cu under the standard reaction conditions. The observed diastereoselectivity was found to depend on the degree and pattern of chlorine substitution for hydrogen in the structure of the dehydroalanine complexes. The unsubstituted complex gave the ratio of diastereomers (S)(2S)/(S)(2R) of 66/34. On the other hand, introduction of chlorine atoms in the strategic positions on the chiral ligands allowed to achieve a practically attractive diastereoselectivity of (∼98.5/1.5). Diastereomerically pure major product was disassembled to prepare 9-fluorenylmethyloxycarbonyl (Fmoc) derivative of (S)-4,4-difluoroglutamic acid.
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Affiliation(s)
- Yoshinori Tokairin
- Department of Life Sciences and ChemistryJacobs University Bremen GmbHCampus Ring 128759BremenGermany
| | - Yuhei Shigeno
- Department of Biochemical Engineering, Graduate School of Science and TechnologyYamagata University, YonezawaYamagata992-8510Japan
| | - Jianlin Han
- College of Chemical EngineeringNanjing Forestry UniversityNanjing210037China
| | - Gerd‐Volker Röschenthaler
- Department of Life Sciences and ChemistryJacobs University Bremen GmbHCampus Ring 128759BremenGermany
| | - Hiroyuki Konno
- Department of Biochemical Engineering, Graduate School of Science and TechnologyYamagata University, YonezawaYamagata992-8510Japan
| | - Hiroki Moriwaki
- Hamari Chemicals Ltd.1-4-29 Kunijima, Higashi-Yodogawa-kuOsaka533-0024Japan
| | - Vadim A. Soloshonok
- Department of Organic Chemistry I, Faculty of ChemistryUniversity of the Basque Country UPV/EHUPaseo Manuel Lardizábal 320018San SebastiánSpain
- IKERBASQUE, Basque Foundation for ScienceMaría Díaz de Haro 3, Plaza Bizkaia48013BilbaoSpain
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