Saponin and sapogenol. XI. Chemical correlation of spergulagenin A, a new migrated hopane-type sapogenol,with hydroxyhopane.
摘要:
先前从Mollugo spergula L.的根中分离出的新型迁移型葎烷类皂苷元spergulagenin A (1)与羟基葎烷(2)的化学相关性,已通过将两者转化为共同的衍生物4a (=7a)得以阐明。 已经描述了在乙醇碱的长时间处理下,spergulagenin A (1)中甲基羰基部分的梅尔文-庞多夫型还原。
DOI:
10.1248/cpb.23.2087
作为产物:
描述:
2-((3R,3aR,5aR,5bR,7aS,11aS,11bR,13aR,13bR)-3,5a,5b,8,8,11a,13b-Heptamethyl-icosahydro-cyclopenta[a]chrysen-3-yl)-2-methyl-[1,3]dioxolane 在
溶剂黄146 作用下,
以
氯仿 为溶剂,
生成 Tridesoxy-Spergulagenin A
参考文献:
名称:
Saponin and sapogenol. IX. Structure of spergulagenin A, a new migrated hopane-type sapogenol isolated from Mollugo spergula L.