(Z)-3-Methyl-7-{(1S,2R,3S,4R)-3-[(E)-(3R,4S)-4-phenyl-3-(tetrahydro-pyran-2-yloxy)-pent-1-enyl]-7-oxa-bicyclo[2.2.1]hept-2-yl}-hept-5-enoic acid methyl ester 在
amberlyst-15 resin 作用下,
以
甲醇 为溶剂,
反应 18.0h,
以96%的产率得到(Z)-7-[(1S,2R,3S,4R)-3-((E)-(3R,4S)-3-Hydroxy-4-phenyl-pent-1-enyl)-7-oxa-bicyclo[2.2.1]hept-2-yl]-3-methyl-hept-5-enoic acid methyl ester