(8R,9S,13S,14S)-16-[bis(methylsulfanyl)methylidene]-3-methoxy-13-methyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthren-17-one 在
sodium hydride 、
对甲苯磺酸 作用下,
以
N,N-二甲基甲酰胺 、
苯 为溶剂,
生成 (1S,16S,17S,26S)-22-methoxy-1,4-dimethyl-13-methylsulfanyl-4-azaheptacyclo[14.12.0.02,14.03,11.05,10.017,26.020,25]octacosa-2(14),3(11),5,7,9,12,20(25),21,23-nonaene-12-carbonitrile