5-{(3E,5E)-2-[(tert-butyldimethylsilyl)oxy]hepta-3,5-dien-1-yl}-4-{[(R)-1-{(2R,3R)-3-[(Z)-hepta-1,6-dien-1-yl]oxiran-2-yl}propan-2-yloxy]carbonyl}-1,3-phenylene diacetate 在
Hoveyda-Grubbs catalyst second generation 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 3.0h,
以75%的产率得到(1aR,2Z,4E,14R,15aR)-6-[(tert-butyldimethylsilyl)oxy]-14-methyl-12-oxo-6,7,12,14,15,15a-hexahydro-1aH-benzo[c]oxireno[2,3-k][1]-oxacyclotetradecine-9,11-diyl diacetate