摘要

首次对南海柳珊瑚Leptogorgiarigida中甾体类次生代谢产物进行研究。采用硅胶柱柱层析、十八烷基硅烷键合硅胶填料、SephadexLH-20、高效液相色谱(HPLC)及薄层色谱(TLC)等多种方法进行分离纯化,通过核磁共振波谱(NMR)、质谱(MS)等现代波谱分析及物理常数对照等方法进行结构鉴定。从南海柳珊瑚Leptogorgiarigida次生代谢产物中分离得到8个甾类化合物,结构依次为:3β,6β,11-trihydroxy-9,11-seco-5α-chloest-7-en-9-one(1);3β,6α,11-trihydroxy-9,11-seco-5α-chloest-7-en-9-one(2);3β,6α,11-trihydroxy-5α-chloest-7,22(E)-dien-9-one(3);pregnan-4-en-3,20-dione(4);5α-pregnan-3,20-dione(5);3β-hydroxy-pregnan-5-en-20-dion(6);3β-hydroxy-5α-pregnan-20-one(7);和3β,6α, 11-trihydroxy-9, 11-seco-5α-gorgosterol (8)。所有化合物均首次从Leptogorgia属中得到。