乙酸酐 、 N-{(2R,3R,4R,5S,6R)-5-((2R,4aR,6S,7R,8R,8aS)-7-Acetylamino-8-hydroxy-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-2-allyloxy-6-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-4-hydroxy-tetrahydro-pyran-3-yl}-acetamide 在
吡啶 作用下,
生成
Acetic acid (2R,3S,4R,5R,6R)-3-((2R,4aR,6S,7R,8R,8aS)-8-acetoxy-7-acetylamino-2-phenyl-hexahydro-pyrano[3,2-d][1,3]dioxin-6-yloxy)-5-acetylamino-6-allyloxy-2-[bis-(4-methoxy-phenyl)-phenyl-methoxymethyl]-tetrahydro-pyran-4-yl ester