(2S)-6-methyl-2-((1R,3aS,3bS,5aS,6aS,9aR,10aR,10bS,12aS)-8,8,10a,12a-tetramethylhexadecahydrospiro[cyclopenta[7,8]phenanthro[2,3-d][1,3]dioxole-5,2'-[1,3]dioxolan]-1-yl)hept-4-yn-3-ol 在
P
2-Nickel
氢气 、
乙二胺 作用下,
以83.9%的产率得到(2S,Z)-6-methyl-2-((1R,3aS,3bS,5aS,6aS,9aR,10aR,10bS,12aS)-8,8,10a,12a-tetramethylhexadecahydrospiro[cyclopenta[7,8]phenanthro[2,3-d][1,3]dioxole-5,2'-[1,3]dioxolan]-1-yl)hept-4-en-3-ol