正丁酸乙烯酯 、
22-hydroxy-3-oxo-pregn-4-ene-22-carbonitrile 在
PeptiCLEC-subtilisin 作用下,
以
丙酮 为溶剂,
反应 336.0h,
生成 (22S)-3-oxo-23,24-dinorchol-4-ene-22-cyanohydrin 、 (22R)-3-oxo-23,24-dinorchol-4-ene-22-cyanohydrin 、 [(1R,2S)-1-cyano-2-[(8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]propyl] butanoate 、 [(1S,2S)-1-cyano-2-[(8S,9S,10R,13S,14S,17R)-10,13-dimethyl-3-oxo-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl]propyl] butanoate