(Z)-7-[(1R,2R,3R,5S)-5-Hydroxy-2-[(E)-(3S,4R)-4-methoxy-4-methyl-3-(tetrahydro-pyran-2-yloxy)-oct-1-enyl]-3-(tetrahydro-pyran-2-yloxy)-cyclopentyl]-hept-5-enoic acid methyl ester 在
dipyridine chromium trioxide 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以77%的产率得到(Z)-7-[(1R,2R,3R)-2-[(E)-(3S,4R)-4-Methoxy-4-methyl-3-(tetrahydro-pyran-2-yloxy)-oct-1-enyl]-5-oxo-3-(tetrahydro-pyran-2-yloxy)-cyclopentyl]-hept-5-enoic acid methyl ester