carbonic acid 2-(14-allyloxyimino-4-ethyl-11-methoxy-3a,7,9,11,13,15-hexamethyl-6,8-dioxo-dodecahydro-1,3,5-trioxa-cyclopentacyclotetradecen-10-yloxy)-4-(benzyloxycarbonyl-methyl-amino)-6-methyl-tetrahydro-pyran-3-yl ester benzyl ester 在
palladium diacetate
甲酸 、
三乙胺 、
三苯基膦 作用下,
以
四氢呋喃 、
乙醇 为溶剂,
反应 1.5h,
以91%的产率得到carbonic acid benzyl ester 4-(benzyloxycarbonyl-methyl-amino)-2-(4-ethyl-14-hydroxyimino-11-methoxy-3a,7,9,11,13,15-hexamethyl-6,8-dioxo-dodecahydro-1,3,5-trioxa-cyclopentacyclotetradecen-10-yloxy)-6-methyl-tetrahydro-pyran-3-yl ester