(1R,3aR,5S,7aR)-5-{2-[(S)-4-(tert-Butyl-dimethyl-silanyloxy)-2-methylene-cyclohex-(Z)-ylidene]-ethyl}-1-((R)-1,5-dimethyl-hexyl)-7a-methyl-octahydro-inden-4-one 在
RuCl2(1,3-dimesityl-imidazolidin-2-yl)(PCy3)(=CHPh) 18-冠醚-6 、 potassium hydride 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
生成 (3R,3aR,5aS,9aS,9bR)-3-((R)-1,5-Dimethyl-hexyl)-9a-methoxy-3a-methyl-2,3,3a,4,5,5a,6,9,9a,9b-decahydro-1H-cyclopenta[a]naphthalene