(1R,3aR,7aR)-八氢-7a-甲基-1-[(1S,2E,4S)-1,4,5-三甲基-5-[(三甲基硅烷基)氧基]-2-己烯-1-基]-4H-茚-4-酮 、
[2-[(3'R,5'R)-3',5'-bis[(tert-butyldimethylsilyl)oxy]-4'-methylenecyclohexylidene]ethyl]diphenylphosphine oxide 在
正丁基锂 作用下,
生成 [(E,3S,6S)-6-[(1R,3aS,4E,7aR)-4-[2-[(3R,5R)-3,5-bis[[tert-butyl(dimethyl)silyl]oxy]-4-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-2,3-dimethylhept-4-en-2-yl]oxy-trimethylsilane