methyl (2S,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[2-chloro-4-[(2,5-dioxopyrrolidin-1-yl)oxycarbonyloxymethyl]phenoxy]oxane-2-carboxylate 在
甲醇 、
sodium methylate 、
三乙胺 作用下,
以
四氢呋喃 、
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
生成 methyl (2S,3S,4S,5R,6S)-6-[2-chloro-4-[[(2S,3S,4S,6R)-3-hydroxy-2-methyl-6-[[(1S,3S)-3,5,12-trihydroxy-3-(2-hydroxyacetyl)-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]oxan-4-yl]carbamoyloxymethyl]phenoxy]-3,4,5-trihydroxyoxane-2-carboxylate