(E)-(4S,5R,8R)-4-Hydroxy-8-((3bS,6R,8aS,8bS,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-5-methyl-non-6-en-2-ynoic acid isopropyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙酸乙酯 为溶剂,
以74%的产率得到(4R,5R,8R)-4-Hydroxy-8-((3bS,6R,8aS,8bS,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-5-methyl-nonanoic acid isopropyl ester