[(1R)-1-(furan-3-yl)-2-[(1S,5S,9R,12R,13R,14S,15R)-15-hydroxy-13,14-dimethyl-4-oxo-3-oxa-6,7-diazatetracyclo[10.4.0.01,5.05,9]hexadec-6-en-13-yl]ethyl] acetate 、
乙酸酐 在
吡啶 作用下,
反应 168.0h,
以55%的产率得到[(1S,5S,9R,12R,13R,14S,15R)-13-[(2R)-2-acetyloxy-2-(furan-3-yl)ethyl]-13,14-dimethyl-4-oxo-3-oxa-6,7-diazatetracyclo[10.4.0.01,5.05,9]hexadec-6-en-15-yl] acetate