(5S)-6-allyl-5-ethynyl-hexahydro-4a-hydroxy-5-((R)-2-methoxybut-3-enyl)-1H-pyrano[4,3-c]pyridin-3(4H)-one 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
以7%的产率得到(4aS,10R,11aS)-11a-Ethynyl-11b-hydroxy-10-methoxy-1,4,4a,5,6,7,10,11,11a,11b-decahydro-3-oxa-6a-aza-cyclohepta[a]naphthalen-2-one