(24S)-14α,24-dimethyl-9β,19-cyclo-5α-cholest-25-en-3β-ol: A new sterol and other sterols inMusa sapientum |
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| Authors: | Toshihiro Akihisa Naoto Shimizu Toshitake Tamura Taro Matsumoto |
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| Affiliation: | (1) College of Science and Technology, Nihon University, 1-8, Kanda Surugadai, Chiyoda-ku, 101 Tokyo, Japan;(2) Ibaraki Research Lab., Hitachi Chemical Co. Ltd., 4-13-1, Higashi-cho, 317 Hitachi-shi, Ibaraki, Japan |
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| Abstract: | The structure of a new sterol isolated fromMusa sapientum has been shown by chemical and spectroscopic methods to be (24S)-14α,24-dimethyl-9α,19-cyclo-5α-cholest-25-en-3β-ol. In addition, several known (24S)-24-methyl-Δ25-sterols, their 24-methylene isomers and other sterols (4,4-dimethyl-, 4α-methyl- and 4-demethyl-sterols) together with 3-oxo-4α-methylsteroids were isolated from the plant and identified. The biogenetic implication of these sterols and 3-oxosteroids is discussed. |
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