(1S,5aS,9aS,9bR)-1-((R)-1,2-Dihydroxy-propyl)-6,6,9a-trimethyl-5,5a,6,7,8,9,9a,9b-octahydro-1H-naphtho[1,2-c]furan-3-one 在
对甲苯磺酸 作用下,
以
甲醇 为溶剂,
生成 (4S,4aR,8aS,12aS,12bR,12cS)-2,2,4,9,9,12a-Hexamethyl-4a,8,8a,9,10,11,12,12a,12b,12c-decahydro-4H-1,3,5-trioxa-benzo[c]phenanthren-6-one