16α-(dimethylthexyl-silanyloxy)-17-(1,2-ethylene)-6-keto-7α-[9-(4,4,5,5,5-pentafluoro-n-pentyl)thiononyl]-3-tetrahydropyranyloxy-estra-1,3,5(10)-triene 在
sodium tetrahydroborate 作用下,
以
四氢呋喃 、
甲醇 为溶剂,
以100%的产率得到16α-(dimethylthexyl-silanyloxy)-17-(1,2-ethylene)-6α-hydroxy-7α-[9-(4,4,5,5,5-pentafluoro-n-pentyl)thiononyl]-3-tetrahydropyranyloxy-estra-1,3,5(10)-triene