(10R,13S,E)-17-(1H-imidazol-1-yl)-10,13-dimethyl-1,7,8,10,11,12,13,15,16,17-decahydro-2H-cyclopenta[a]phenanthren-3(6H,9H,14H)-one oxime 在
氯化亚砜 作用下,
以
四氢呋喃 为溶剂,
以26%的产率得到(5aR,7aS)-8-(1H-imidazol-1-yl)-5a,7a-dimethyl-4,5,5a,5b,6,7,7a,8,9,10,10a,10b,11,12-tetradecahydrocyclopenta[5,6]naphtho[1,2-d]azepin-2(3H)-one