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Kawagoe F, Mototani S, Yasuda K, Nagasawa K, Uesugi M, Sakaki T, Kittaka A. Introduction of fluorine atoms to vitamin D 3 side-chain and synthesis of 24,24-difluoro-25-hydroxyvitamin D 3. J Steroid Biochem Mol Biol 2019; 195:105477. [PMID: 31541729 DOI: 10.1016/j.jsbmb.2019.105477] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/29/2019] [Accepted: 09/18/2019] [Indexed: 02/02/2023]
Abstract
During our ongoing studies of vitamin D, we focused on the vitamin D3 side-chain 24-position, which is the major metabolic site of human CYP24A1. In order to inhibit the metabolism of vitamin D3, 24,24-difluorovitamin D3analogues are important candidates. In this paper, we report the practical introduction of the difluoro-unit to the 24-position to synthesize 24,24-difluoro-CD ring (1) and 24,24-difluoro-25-hydroxyvitamin D3 (2).
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Affiliation(s)
- Fumihiro Kawagoe
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan; AMED-CREST, The Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004 Japan
| | - Sayuri Mototani
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan
| | - Kaori Yasuda
- Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Kazuo Nagasawa
- AMED-CREST, The Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004 Japan; Department of Biotechnology and Life Science, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan
| | - Motonari Uesugi
- AMED-CREST, The Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004 Japan; Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Toshiyuki Sakaki
- Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan; AMED-CREST, The Japan Agency for Medical Research and Development (AMED), 1-7-1 Otemachi, Chiyoda-ku, Tokyo 100-0004 Japan.
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Kawagoe F, Sugiyama T, Yasuda K, Uesugi M, Sakaki T, Kittaka A. Concise synthesis of 23-hydroxylated vitamin D 3 metabolites. J Steroid Biochem Mol Biol 2019; 186:161-168. [PMID: 30367940 DOI: 10.1016/j.jsbmb.2018.10.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/09/2018] [Accepted: 10/23/2018] [Indexed: 10/28/2022]
Abstract
Three 23-hydroxylated vitamin D3 derivatives, which are metabolites of 25-hydroxyvitamin D3 produced by CYP24A1 and a related diastereomer, were efficiently synthesized. Each C23 hydroxy unit was constructed by the Claisen condensation reaction with ethyl acetate or the Grignard reaction with 2-methylallymagnesium chloride. Stereochemistry at the C23 position was determined by a modified Mosher's method. The triene structures were constructed by the Wittig-Horner reaction utilizing the A-ring phosphine oxide moiety.
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Affiliation(s)
- Fumihiro Kawagoe
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan; AMED-CREST, AMED, Japan
| | - Toru Sugiyama
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan
| | - Kaori Yasuda
- Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Motonari Uesugi
- AMED-CREST, AMED, Japan; Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto 611-0011, Japan
| | - Toshiyuki Sakaki
- Faculty of Engineering, Toyama Prefectural University, Imizu, Toyama 939-0398, Japan
| | - Atsushi Kittaka
- Faculty of Pharmaceutical Sciences, Teikyo University, 2-11-1 Kaga, Itabashi, Tokyo 173-8605, Japan; AMED-CREST, AMED, Japan.
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