(1S,3R,7S,9R,11S)-11-[3-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-pentyl]-9-hydroxy-3,7,11-trimethyl-2-oxa-tricyclo[5.5.0.01,3]dodecan-12-one 在
lithium diethylamide 作用下,
以
乙醚 为溶剂,
以72%的产率得到(1R,2R,7S,9R,11S)-11-[3-(tert-Butyl-dimethyl-silanyloxy)-4-methyl-pentyl]-7,11-dimethyl-3-methylene-12-oxa-tricyclo[7.2.1.0
2,7]dodecane-1,2-diol