乙酸酐 、
5-O-mycaminosyl tylonolide 以
丙酮 为溶剂,
反应 2.0h,
以98%的产率得到[(2R,3S,4S,5R,6R)-5-acetyloxy-4-(dimethylamino)-6-[[(4R,5S,6S,7R,9R,11E,13E,15R,16R)-16-ethyl-4-hydroxy-15-(hydroxymethyl)-5,9,13-trimethyl-2,10-dioxo-7-(2-oxoethyl)-1-oxacyclohexadeca-11,13-dien-6-yl]oxy]-2-methyloxan-3-yl] acetate