benzyl [(2S,3R,4S,6R)-2-[[(3R,4S,5S,6R,7R,9R,10E,11S,12R,13S,14R)-14-ethyl-12,13-dihydroxy-4-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-7-methoxy-3,5,7,9,11,13-hexamethyl-2-oxo-10-prop-2-enoxyimino-oxacyclotetradec-6-yl]oxy]-6-methyl-4-[methyl(phenylmethoxycarbonyl)amino]oxan-3-yl] carbonate 在
盐酸 作用下,
以
四氢呋喃 为溶剂,
反应 1.5h,
以99%的产率得到carbonic acid 2-(10-allyloxyimino-14-ethyl-4,12,13-trihydroxy-7-methoxy-3,5,7,9,11,13-hexamethyl-2-oxo-oxacyclotetradec-6-yloxy)-4-(benzyloxycarbonyl-methyl-amino)-6-methyl-tetrahydro-pyran-3-yl ester benzyl ester