{2-[(E)-2-((3R,3aS,4S,4aR,8aS,9aR)-3-Methyl-1-oxo-dodecahydro-naphtho[2,3-c]furan-4-yl)-vinyl]-quinolin-6-yloxy}-acetic acid ethyl ester 在
lithium hydroxide 作用下,
以
甲醇 为溶剂,
生成 (+)-2-(2-(2-((3R,3aS,4S,4aR,8aS,9aR)-3-methyl-1-oxo-dodecahydronaphtho[2,3-c]furan-4-yl)vinyl)quinolin-6-yloxy)acetic acid