3'-N-acetyl-2'-O-acetyl-3,23-bis(O-tert-butyldimethylsilyl)-3'-N-demethyl-4'-deoxymycaminosyltylonolide 9,20-bis(ethylene acetal) 在
盐酸 、
sodium methylate 作用下,
以
甲醇 、
乙腈 为溶剂,
反应 15.0h,
生成 N-{(2S,3R,4S,6R)-2-[(11E,13E)-(4R,5S,6S,7R,9R,15R,16R)-16-Ethyl-4-hydroxy-15-hydroxymethyl-5,9,13-trimethyl-2,10-dioxo-7-(2-oxo-ethyl)-oxacyclohexadeca-11,13-dien-6-yloxy]-3-hydroxy-6-methyl-tetrahydro-pyran-4-yl}-N-methyl-acetamide