(1S,4aS,5R,8aR)-5-(2-Isobutyryloxy-2-oxo-ethyl)-1,4a-dimethyl-6-oxo-decahydro-naphthalene-1-carboxylic acid methyl ester 在
三乙胺 作用下,
以
乙醇 为溶剂,
100.0 ℃
、53.33 Pa
条件下,
反应 6.0h,
生成 (3aR,5aR,6S,9aS)-6,9a-Dimethyl-2-oxo-2,3a,4,5,5a,6,7,8,9,9a-decahydro-naphtho[2,1-b]furan-6-carboxylic acid methyl ester