1
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Mandai H, Matsuura Y, Johari FMB, Mitsudo K, Suga S. An Efficient Protocol for Selective Silylation of Hydroxy Group Using N, O-Bis( tert-butyldimethylsilyl)acetamide and N, N-Dimethyl-4-aminopyridine N-oxide. CHEM LETT 2022. [DOI: 10.1246/cl.220281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hiroki Mandai
- Department of Pharmacy, Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu, 509-0293
| | - Yuichiro Matsuura
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530
| | - Fatin Mahfuzah Binti Johari
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530
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2
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Mandai H, Hironaka T, Mitsudo K, Suga S. Acylative Desymmetrization of Cyclic meso-1,3-Diols by Chiral DMAP Derivatives. CHEM LETT 2021. [DOI: 10.1246/cl.200809] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hiroki Mandai
- Department of Pharmacy, Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Tsubasa Hironaka
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530, Japan
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3
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Mandai H, Suga S, Ashihara K, Mitsudo K. Acylative Desymmetrization of Glycerol Derivatives by Chiral DMAP Derivatives. HETEROCYCLES 2021. [DOI: 10.3987/com-21-14433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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4
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Mandai H, Shiomoto R, Fujii K, Mitsudo K, Suga S. Kinetic Resolution of Tertiary Alcohols by Chiral DMAP Derivatives: Enantioselective Access to 3-Hydroxy-3-substituted 2-Oxindoles. Org Lett 2020; 23:1169-1174. [DOI: 10.1021/acs.orglett.0c03956] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Hiroki Mandai
- Department of Pharmacy, Faculty of Pharmacy, Gifu University of Medical Science, 4-3-3 Nijigaoka, Kani, Gifu 509-0293, Japan
| | - Ryuhei Shiomoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Fujii
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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5
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α-Amino Acids as Synthons in the Ugi-5-Centers-4-Components Reaction: Chemistry and Applications. Symmetry (Basel) 2019. [DOI: 10.3390/sym11060798] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Since the first reports, the Ugi four-component reaction (U-4CR) has been recognized as a keystone transformation enabling the synthesis of peptide mimetics in a single step and with high atom economy. In recent decades, the U-4CR has been a source of inspiration for many chemists fascinated by the possibility of identifying new efficient organic reactions by simply changing one of the components or by coupling in tandem the multicomponent process with a huge variety of organic transformations. Herein we review the synthetic potentialities, the boundaries, and the applications of the U-4CR involving α-amino acids, where the presence of two functional groups—the amino and the carboxylic acids—allowed a 5-center 4-component Ugi-like reaction, a powerful tool to gain access to drug-like multi-functionalized scaffolds.
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6
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Mandai H, Ashihara K, Mitsudo K, Suga S. Enantioselective Desymmetrization of 1,3-Diols by a Chiral DMAP Derivative. CHEM LETT 2018. [DOI: 10.1246/cl.180697] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hiroki Mandai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kosuke Ashihara
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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7
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Recent topics in enantioselective acyl transfer reactions with dialkylaminopyridine-based nucleophilic catalysts. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Cozett RE, Venter GA, Gokada MR, Hunter R. Catalytic enantioselective acyl transfer: the case for 4-PPY with a C-3 carboxamide peptide auxiliary based on synthesis and modelling studies. Org Biomol Chem 2018; 14:10914-10925. [PMID: 27814425 DOI: 10.1039/c6ob01991a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A series of 4-pyrrolidinopyridine (4-PPY) C-3 carboxamides containing peptide-based side chains have been synthesised and evaluated in the kinetic resolution of a small library of chiral benzylic secondary alcohols. A key design element was the incorporation of a tryptophan residue in the peptide side chain for promoting π-stacking between peptide side chain and the pyridinium ring of the N-acyl intermediate, in which modelling was used as a structure-based guiding tool. Together, a catalyst containing a LeuTrp-N-Boc side chain (catalyst 8) was identified that achieved s-values up to and in slight excess of 10. A transition-state model based on the modelling is proposed to explain the origin of enantioselectivity. This study establishes the usefulness of modelling as a structure-based guiding tool for enantioselectivity optimization as well as the potential for developing scalable peptide-based DMAP-type catalysts for large-scale resolution work.
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Affiliation(s)
- Rudy E Cozett
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa.
| | - Gerhard A Venter
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa. and Scientific Computing Research Unit, University of Cape Town, Rondebosch, 7701, South Africa
| | - Maheswara Rao Gokada
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa.
| | - Roger Hunter
- Department of Chemistry, University of Cape Town, Rondebosch, 7701, South Africa.
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9
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Hara N, Fujisawa S, Fujita M, Miyazawa M, Ochiai K, Katsuda S, Fujimoto T. Kinetic resolution of sterically hindered secondary alcohols catalyzed by aminophosphinite organocatalyst. Tetrahedron 2018. [DOI: 10.1016/j.tet.2017.11.062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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10
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Mandai H, Yasuhara H, Fujii K, Shimomura Y, Mitsudo K, Suga S. Desymmetrization of meso-1,2-Diols by a Chiral N,N-4-Dimethylaminopyridine Derivative Containing a 1,1′-Binaphthyl Unit: Importance of the Hydroxy Groups. J Org Chem 2017; 82:6846-6856. [DOI: 10.1021/acs.joc.7b00992] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroki Mandai
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroshi Yasuhara
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Fujii
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Yukihito Shimomura
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied
Chemistry,
Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
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11
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Fujii K, Mitsudo K, Mandai H, Suga S. Hydrogen Bonding-Assisted Enhancement of the Reaction Rate and Selectivity in the Kinetic Resolution of d,l
-1,2-Diols with Chiral Nucleophilic Catalysts. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700057] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kazuki Fujii
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530 Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530 Japan
| | - Hiroki Mandai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530 Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology; Okayama University; 3-1-1 Tsushima-naka Kita-ku, Okayama 700-8530 Japan
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12
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Mandai H, Fujii K, Suga S. Development of Efficient and Effective Rate Acceleration Systems in Organocatalysis. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hiroki Mandai
- Graduate School of Natural Science and Technology, Okayama University
| | | | - Seiji Suga
- Graduate School of Natural Science and Technology, Okayama University
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13
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Fujii K, Mitsudo K, Mandai H, Suga S. Kinetic Resolution of Secondary Carbinols by a ChiralN,N-4-Dimethylaminopyridine Derivative Containing a 1,1′-Binaphthyl Unit: Hydrogen Bonding Affects Catalytic Activity and Enantioselectivity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2016. [DOI: 10.1246/bcsj.20160135] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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14
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Mandai H, Fujii K, Yasuhara H, Abe K, Mitsudo K, Korenaga T, Suga S. Enantioselective acyl transfer catalysis by a combination of common catalytic motifs and electrostatic interactions. Nat Commun 2016; 7:11297. [PMID: 27079273 PMCID: PMC4835565 DOI: 10.1038/ncomms11297] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 03/09/2016] [Indexed: 11/22/2022] Open
Abstract
Catalysts that can promote acyl transfer processes are important to enantioselective synthesis and their development has received significant attention in recent years. Despite noteworthy advances, discovery of small-molecule catalysts that are robust, efficient, recyclable and promote reactions with high enantioselectivity can be easily and cost-effectively prepared in significant quantities (that is, >10 g) has remained elusive. Here, we demonstrate that by attaching a binaphthyl moiety, appropriately modified to establish H-bonding interactions within the key intermediates in the catalytic cycle, and a 4-aminopyridyl unit, exceptionally efficient organic molecules can be prepared that facilitate enantioselective acyl transfer reactions. As little as 0.5 mol% of a member of the new catalyst class is sufficient to generate acyl-substituted all-carbon quaternary stereogenic centres in quantitative yield and in up to 98:2 enantiomeric ratio (er) in 5 h. Kinetic resolution or desymmetrization of 1,2-diol can be performed with high efficiency and enantioselectivity as well. Nucleophilic catalysts are widely used for acyl transfer reactions, but chiral variants can be difficult to design or synthesise. Here, the authors report catalysts with chirality imparted from a binaphtyl moiety with tert-alcohol unit that show both high activity and enantioselectivity for a range of acyl transfer reactions.
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Affiliation(s)
- Hiroki Mandai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Fujii
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroshi Yasuhara
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kenko Abe
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Toshinobu Korenaga
- Faculty of Engineering, Department of Chemistry and Bioengineering, Iwate University, Morioka, Iwate 020-8551, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.,Research Center of New Functional Materials for Energy Production, Storage and Transport Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan.,Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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15
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Mandai H, Fujiwara T, Noda K, Fujii K, Mitsudo K, Korenaga T, Suga S. Enantioselective Steglich Rearrangement of Oxindole Derivatives by Easily Accessible Chiral N,N-4-(Dimethylamino)pyridine Derivatives. Org Lett 2015; 17:4436-9. [DOI: 10.1021/acs.orglett.5b02089] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hiroki Mandai
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Takuma Fujiwara
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Katsuaki Noda
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Kazuki Fujii
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Toshinobu Korenaga
- Faculty
of Engineering, Department of Chemistry and Bioengineering, Iwate University, Morioka, Iwate 020-8551, Japan
| | - Seiji Suga
- Division
of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
- Research
Center of New Functional Materials for Energy Production, Storage
and Transport, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
- Japan Science and Technology Agency, ACT-C, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
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16
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Murai T, Miwa T. Kinetic Resolution of Secondary 2-Aryl-1-cycloalkanols with Phosphoroselenoyl Chloride with a Binaphthyl Group. HETEROATOM CHEMISTRY 2014. [DOI: 10.1002/hc.21168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Toshiaki Murai
- Department of Chemistry and Biomolecular Science; Faculty of Engineering, Gifu University; Yanagido Gifu 501-1193 Japan
- JST, 4-1-8, Honcho; Kawaguchi Saitama 332-0012 Japan
| | - Tomoaki Miwa
- Department of Chemistry and Biomolecular Science; Faculty of Engineering, Gifu University; Yanagido Gifu 501-1193 Japan
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