rac-3,3-ethanediyldioxy-11β-hydroxy-14,16-dioxo-15,18-cyclo-14,15-seco-D-homo-androsta-5,17-diene-17a-carboxylic acid ethyl ester 在
palladium on activated charcoal 、 Lindlar's catalyst 、
乙醇 作用下,
生成
rac-3,3-ethanediyldioxy-11β-hydroxy-14,16-dioxo-15,18-cyclo-14,15-seco-
D-homo-androst-5-ene-17aξ-carboxylic acid ethyl ester