来自八丈岛海洋海绵Theonella swinhoei的九种氧化4-亚甲基甾醇的结构。
Structures of nine oxygenated 4-methylene sterols from Hachijo marine sponge Theonella swinhoei.
作者信息
Sugo Y, Inouye Y, Nakayama N
机构信息
Department of Chemistry, University of Tsukuba, Ibaraki, Japan.
出版信息
Steroids. 1995 Nov;60(11):738-42. doi: 10.1016/0039-128x(95)00108-3.
Nine new sterols have been isolated from a marine sponge, Theonella swinhoei. Of these, seven sterols were found to be conicasterol derivatives [(24R)-4-methylene-24-methyl-8(14)-cholesten-3 beta-ol] oxygenated at carbon-7 and/or carbon-15. The other two were (24R)-7 beta,8 beta-epoxy-14 alpha-methoxy-4-methylene-24-methylcholestan- 3 beta-ol and (24R)-8,14-seco-8,14-dioxo-4-methylene-24-methylcholestan-3 beta-ol.
从海洋海绵斯氏海绵（Theonella swinhoei）中分离出了9种新的甾醇。其中，发现7种甾醇是圆锥甾醇衍生物[（24R）-4-亚甲基-24-甲基-8（14）-胆甾烯-3β-醇]，在碳-7和/或碳-15处被氧化。另外两种是（24R）-7β，8β-环氧-14α-甲氧基-4-亚甲基-24-甲基胆甾烷-3β-醇和（24R）-8,14-断-8,14-二氧代-4-亚甲基-24-甲基胆甾烷-3β-醇。
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