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Inai M, Ueno Y, Sagara H, Ouchi H, Yoshimura F, Kan T. Total Synthesis of Isosilybin B. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Makoto Inai
- University of Shizuoka School of Pharmaceutical Sciences 52-1 Yada, Suruga-ku 422-8526 Shizuoka JAPAN
| | - Yoshinori Ueno
- Shizuoka Kenritsu Daigaku Department School of Pharmaceutical Sciences JAPAN
| | - Hiroto Sagara
- Shizuoka Kenritsu Daigaku Department School of Pharmaceutical Sciences JAPAN
| | - Hitoshi Ouchi
- Shizuoka Kenritsu Daigaku Department School of Pharmaceutical Sciences JAPAN
| | - Fumihiko Yoshimura
- Shizuoka Kenritsu Daigaku Department School of Pharmaceutical Sciences JAPAN
| | - Toshiyuki Kan
- Shizuoka Kenritsu Daigaku Department School of Pharmaceutical Sciences JAPAN
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Murakami H, Asakawa T, Muramatsu Y, Ishikawa R, Hiza A, Tsukaguchi Y, Tokumaru Y, Egi M, Inai M, Ouchi H, Yoshimura F, Taniguchi T, Ishikawa Y, Kondo M, Kan T. Total Synthesis of Sophoraflavanone H and Confirmation of Its Absolute Configuration. Org Lett 2020; 22:3820-3824. [PMID: 32324417 DOI: 10.1021/acs.orglett.0c01063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Sophoraflavanone H (1) is a polyphenol with a hybrid-type structure containing 2,3-diaryl-2,3-dihydrobenzofuran and flavanone ring moieties. This compound and related analogues are promising leads for antimicrobial and antitumor drug development. Here we describe a total synthesis of 1 and its diastereomer. The dihydrobenzofuran and flavanone rings were constructed by a Rh-catalyzed asymmetric C-H insertion reaction and selective oxy-Michael reaction. The absolute configuration of 1 was established by X-ray crystallographic analysis and CD spectral investigation of synthetic derivatives.
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Affiliation(s)
- Haruka Murakami
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Tomohiro Asakawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan.,Department of Fisheries-Food Science, Tokai University, 3-20-1 Orido, Shimizu, Shizuoka, Shizuoka 424-8610, Japan
| | - Yoshihiro Muramatsu
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Ryo Ishikawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Aiki Hiza
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Yuta Tsukaguchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Yohei Tokumaru
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Masahiro Egi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Makoto Inai
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Hitoshi Ouchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Fumihiko Yoshimura
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Tohru Taniguchi
- Faculty of Advanced Life Science, Frontier Research Center for Advanced Material and Life Science, Hokkaido University, Kita 21 Nishi 11, Sapporo, Hokkaido 001-0021, Japan
| | - Yoshinobu Ishikawa
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
| | - Mitsuru Kondo
- Graduate School of Science and Technology, Shizuoka University, 836 Ohya, Suruga, Shizuoka, Shizuoka 422-8529, Japan
| | - Toshiyuki Kan
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga, Shizuoka, Shizuoka 422-8526, Japan
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