在
四丁基碘化铵 作用下,
以
甲苯 为溶剂,
反应 19.0h,
以6 mg的产率得到(1S,3aS,5aR,6aR,9aS,10aR,12aR)-3a-Hydroxy-1-[(4R,5R)-5-(4-iodo-3-methyl-butyl)-2,2,4-trimethyl-[1,3]dioxolan-4-yl]-8,8,10a,12a-tetramethyl-1,2,3,3a,5a,6,6a,9a,10,10a,10b,11,12,12a-tetradecahydro-7,9-dioxa-dicyclopenta[a,h]phenanthren-5-one