2-((2R,4aR,4bS,10aR)-2-Chloro-4a,8,8-trimethyl-1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydro-phenanthren-2-yl)-2-hydroxy-propionitrile 在
aluminum oxide 作用下,
生成
(+/-)-2α-Acetyl-2β-chlor-1,2,3,4,4a,4bα,5,6,7,8,10,10aα-Dodecahydro-4aβ,8,8-trimethyl-phenanthren