4-[2-((1S,2S,4aR,4bS,8aS,10aR)-1,2,3,4,4a,4b,5,6,7,8,8a,9,10,10a-tetradecahydro-4b,8,8,10a-tetra-methyl-2,2'-di-O-isopropylidene-trans-anti-trans-phenanthryl)-(E)-ethynyl]-2-trimethylsilylfuran 在
氧气 、 tetraphenylporphyrin 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以74%的产率得到2-hydroxy-3-[2-((1S,2S,4aR,4bS,8aS,10aR)-1,2,3,4,4a,4b,5,6,7,8,8a,9,10,10a-tetradecahydro-4b,8,8,10a-tetra-methyl-2,2'-di-O-isopropylidene-trans-anti-trans-phenanthryl)-(E)-ethynyl]-5-butenolide