(2S,3S,4S,5R,6R)-2-Allyl-3,5-bis-allyloxy-6-but-3-enyl-4-(4-methoxy-benzyloxy)-tetrahydro-pyran 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
以77%的产率得到(Z)-(5aS,6aR,12aR,13S,13aS)-13-(4-Methoxy-benzyloxy)-2,5,5a,6a,7,8,11,12a,13,13a-decahydro-1,6,12-trioxa-cyclohepta[4,5]benzo[1,2]cyclooctene