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Masui H, Naito K, Minoshima M, Kusayanagi A, Yosugi S, Shoji M, Takahashi T. Efficient synthesis of 5-(hydroxymethyl)piperazin-2-ones using automatically prepared chiral bromocarboxylic acid and Garner's aldehyde as versatile building blocks. Bioorg Med Chem Lett 2021; 40:127961. [PMID: 33741461 DOI: 10.1016/j.bmcl.2021.127961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 03/08/2021] [Accepted: 03/10/2021] [Indexed: 11/25/2022]
Abstract
An efficient method for the synthesis of substituted 5-(hydroxymethyl)piperazin-2-ones was established by using an automated synthesis process. Thirteen piperazinones were synthesized from chiral α-bromocarboxylic acids and Garner's aldehyde which were prepared by using our originally developed automated synthesizer, ChemKonzert®. The automated method of synthesizing chiral α-bromocarboxylic acids was efficient and safe because the rate of the dropwise addition of the reagent can be controlled using the automated synthesizer. This method is expected to contribute to the synthesis of pharmaceuticals.
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Affiliation(s)
- Hisashi Masui
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan; Graduate School of Pharmaceutical Sciences, Department of Basic Medicinal Sciences, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Kohei Naito
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Mai Minoshima
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Akira Kusayanagi
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Sae Yosugi
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Mitsuru Shoji
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan
| | - Takashi Takahashi
- Department of Pharmaceutical Sciences, Yokohama University of Pharmacy, 601 Matano-cho, Totsuka-ku, Yokohama 245-0066, Japan; Graduate School of Infection Control Sciences, Kitasato University, 5-9-1 Shirokane, Minato-ku, Tokyo 108-8641, Japan.
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Tamamura H, Kobayakawa T, Ohashi N. Introduction to Mid-size Drugs and Peptidomimetics. MID-SIZE DRUGS BASED ON PEPTIDES AND PEPTIDOMIMETICS 2018. [DOI: 10.1007/978-981-10-7691-6_1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Ramesh VV, Puranik VG, Sanjayan GJ. Carbohydrate-derived conformationally restricted bicyclic dipeptides as potential hetero foldamer building blocks. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.08.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Sugar–amino acid cyclic conjugates as novel conformationally constrained hydroxyethylamine transition-state isosteres. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.04.086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Synthesis of conformationally-constrained thio(seleno)hydantoins and α-triazolyl lactones from d-arabinose as potential glycosidase inhibitors. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.03.087] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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