tert-butyl N-allyl-N-[(2R,4aR,6R,7R,8R,8aS)-7-allyl-6-methoxy-2-phenylhexahydropyrano[3,2-d][1,3]dioxin-8-yl]carbamate 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
以91%的产率得到6-methoxy-2-phenyl-4,4a,6,6a,7,10,11a,11b-octahydro-1,3,5-trioxa-11-azacyclohepta[a]naphthalene-11-carboxylic acid tert-butyl ester