作者:TSUNEHIKO ASAKO、KENTARO HIRAGA、TAKUICHI MIKI
DOI:10.1248/cpb.21.697
日期:——
Meerwein-Ponndorf reduction of 3-methoxy-8, 14-secoestra-1, 3, 5 (10), 9, 15-pentaene-14, 17-dione (III) yielded a mixture of rac-17α- and 17β-hydroxy-3-methoxy-8, 14-secoestra-1, 3, 5 (10), 9, 15-pentaen-14-one (XI and XII). Cyclization of 17β-benzoate of XII gave 3, 16α-dimethoxy estra-1, 3, 5 (10), 8, 14-pentaen-17β-ol 17-benzoate (XV), which was further transformed to rac-estrone (XXT).
用 Meerwein-Ponndorf 还原 3-甲氧基-8,14-雌甾-1,3,5 (10),9,15-戊烯-14,17-二酮(III),得到 rac-17α- 和 17β- 羟基-3-甲氧基-8,14-雌甾-1,3,5 (10),9,15-戊烯-14-酮的混合物(XI 和 XII)。XII 的 17β 苯甲酸酯环化后得到 3,16α-二甲氧基雌甾-1,3,5 (10),8,14-戊烯-17β-醇 17-苯甲酸酯(XV),进一步转化为 rac-estrone (XXT)。