Stereospecific Dehydrogenation of (25R)-and (25S)-3α, 7α, 12α-Trihydroxy-5β-cholestanoic Acids by Acyl-CoA Oxidase in Rat Liver Light Mitochondrial Fraction
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概要
- 論文の詳細を見る
From a stereochemical point of view, the dehydrogenation mechanism of the biotransformation of 3α, 7α, 12α-trihydroxy-5β-cholestanoic acid (THCA) into (24E)-3α, 7α, 12α-trihydroxy-5β-cholest-24-enoic acid (Δ^<24>-THCA) has been studied with capillary gas chromatography (GC)/negative ion chemical ionization (NICI)-mass spectrometry. After incubation of (24R, 25R)-or (24S, 25S)-[24,25-^2H_2] THCA, synthesized from (24E)-Δ^<24>-THCA by a deuterated diimide reduction, with a rat liver light mitochondrial fraction, 5β-cholestanoic acids were extracted and derivatized into a pentafluorobenzyl (PFB) ester-dimethylethylsilyl (DMES) ether. Subsequent resolution into THCA and Δ^<24>-THCA was attained by GC on a cross-linked 5% phenylmethyl silicone fused-silica capillary column monitored with a corresponding characteristic carboxylate anion [M-PFB]^- in the NICI mode. The stereospecific elimination of a pro-R hydrogen at C-24 in both (25R)-and (25S)-THCA indicated syn-elimination for the former, whereas anti-elimination for the latter was observed.
- 公益社団法人日本薬学会の論文
- 1995-08-15
著者
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真野 成康
Faculty Of Pharmaceutical Sciences Tohoku University
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池川 繁男
近畿大学薬学部
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後藤 隆雄
トーアエイヨー株式会社
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Mano Nariyasu
Faculty Of Pharmaceutical Sciences Tohoku University
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Goto Takaaki
Faculty Of Pharmaceutical Sciences Tohoku University
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Goto T
トーアエイヨー
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南原 利夫
東北大学医学部薬学科
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南原 利夫
Faculty of Pharmaceutical Sciences, School of Medicine, Hokkaido University
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池川 繁男
Faculty of Pharmaceutical Sciences, Higashi-Nippon-Gakuen University
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渡辺 博夫
Faculty of Pharmaceutical Sciences, Tohoku University
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後藤 貴章
Faculty of Pharmaceutical Sciences, Tohoku University
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後藤 順一
Faculty of Pharmaceutical Sciences, Tohoku University
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渡辺 博夫
Faculty Of Pharmaceutical Sciences Tohoku University
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Goto T
Hokuriku Univ. Kanazawa Jpn
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Ikegawa S
Health Sci. Univ. Hokkaido Hokkaido Jpn
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Watanabe H
Graduate School Of Engineering Yamagata University
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