(1S,5S,9R,10R,12S,13R,15R,17S)-15-(furan-3-yl)-10-hydroxy-13,17-dimethyl-3,16-dioxa-6,7-diazapentacyclo[10.7.0.01,5.05,9.013,17]nonadec-6-en-4-one 、
乙酸酐 在
吡啶 作用下,
反应 24.0h,
以100%的产率得到[(1S,5S,9R,10R,12S,13R,15R,17S)-15-(furan-3-yl)-13,17-dimethyl-4-oxo-3,16-dioxa-6,7-diazapentacyclo[10.7.0.01,5.05,9.013,17]nonadec-6-en-10-yl] acetate