リ　ギ   Li Wei   李　巍    所属   東邦大学  薬学部 薬学科    職種   教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	New 4alpha-methyl steroids from a Chinese soft coral Nephthea sp
掲載誌名	正式名：Steroids 略　 称：Steroids ISSNコード：0039128X
巻・号・頁	72(14),pp.901-907
著者・共著者	Ke Ma, Wei Li, Hongwei Fu, Kazuo Koike, Wenhan Lin, Leen van Ofwegen, Hongzheng Fu
担当区分	2nd著者
発行年月	2007
概要	Three new 4.alpha.-Me steroids, 4.alpha.-methyl-ergost-7,24(28)-diene-3.beta.-ol-23-one, 4.alpha.-methyl-ergost-8(14),24(28)-diene-3.beta.-ol-23-one, 4.alpha.-methyl-ergost-24(28)-en-3.beta.,11.beta.-diol-23-one, and two new polyoxygenated steroids, ergost-5,25-diene-3.beta.,24S,28-triol (I), ergost-5,24(28)-diene-3.beta.,23S-diol (II), along with one known steroid 24-methylencholesterol were isolated from the soft coral Nephthea sp. Their structures including the relative configurations were elucidated by extensive 1D and 2D NMR spectra anal. The abs. configurations of I and II were detd. by the Mosher's method.