(7R,8R,9S,10R,13S,14S,17S)-17-(methoxymethoxy)-10,13-dimethylspiro[1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-3,2'-1,3-dithiolane]-7-carbaldehyde 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以100%的产率得到[(7R,8R,9S,10R,13S,14S,17S)-17-(methoxymethoxy)-10,13-dimethylspiro[1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthrene-3,2'-1,3-dithiolane]-7-yl]methanol