rac-3,3-ethanediyldioxy-11β,18a-epoxy-15-((Ξ)-isopropoxymethylene)-18a-methyl-18-homo-14β-androsta-5,18-dien-16-one 在
硼酸三钠 、 palladium on activated charcoal 、 Lindlar's catalyst 、
乙醇 作用下,
生成 3,3-ethanediyldioxy-11,18a-epoxy-18a-methyl-18-homo-androsta-5,18-diene-15-carbaldehyde