methyl (2S,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[4-[(2,5-dioxopyrrolidin-1-yl)oxycarbonyloxymethyl]phenoxy]oxane-2-carboxylate 在
甲醇 、
sodium methylate 、 barium(II) oxide 作用下,
以
甲醇 、
N,N-二甲基甲酰胺 为溶剂,
反应 3.75h,
生成 (2S,3S,4S,5R,6S)-6-[4-[[(2S,3S,4S,6R)-6-[[(1S,3S)-3-acetyl-3,5,12-trihydroxy-10-methoxy-6,11-dioxo-2,4-dihydro-1H-tetracen-1-yl]oxy]-3-hydroxy-2-methyloxan-4-yl]carbamoyloxymethyl]phenoxy]-3,4,5-trihydroxyoxane-2-carboxylic acid