(E)-7-{7-[(E)-4,4-Dimethyl-3-(tetrahydro-pyran-2-yloxy)-oct-1-enyl]-1,4-dioxa-spiro[4.4]non-6-yl}-hept-2-enoic acid methyl ester 在
草酸 作用下,
以
乙醇 为溶剂,
生成
(E)-7-[2-((E)-3-Hydroxy-4,4-dimethyl-oct-1-enyl)-5-oxo-cyclopentyl]-hept-2-enoic acid methyl ester