Structure elucidation of (22E,24R,25R)-24-methyl-5α-cholest-22-ene-3β,4β,5,6α,8,14,15α,25,26-nonaol and (22E,24S)-24-methyl–5α-cholest-22-ene-3β,4β,5,6α,8,14,15α,25,28-nonaol, minor marine polyhydroxysteroids isolated from the starfish Archaster typicus
作者:Raffaele Riccio、Mosé Santaniello、Olinda Squillace Greco、Luigi Minale
DOI:10.1039/p19890000823
日期:——
The structures of two minor polyhydroxysteroids isolated from the starfish Archaster typicus were determined as (22E,24R,25R)-24-methyl-5α-cholest-22-ene-3β,4β,5,6α,8,14,15α,25,26-nonaol (4) and (22E,24S)-24-methyl-5α-cholest-22-ene-3β,4β,5,6α,8,14,15α,25,28-nonaol (5).
从海星Archaster typicus分离出的两种次要多羟基类固醇的结构确定为(22 E,24 R,25 R)-24-甲基-5α-胆甾22-烯-3β,4β,5,6α,8,14, 15α,25,26-壬醇(4)和(22 E,24 S)-24-甲基-5α-胆甾22-烯-3β,4β,5,6α,8,14,15α,25,28-壬醇(5)。