(2S,3S,4S,5R,6S)-5-Acetoxy-3-[(2R,3R,4R,5S,6R)-3-azido-6-(tert-butyl-diphenyl-silanyloxymethyl)-5-hydroxy-4-(4-oxo-pentanoyloxy)-tetrahydro-pyran-2-yloxy]-6-methoxy-4-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
吡啶 、
三甲基氨基磺酸 作用下,
反应 20.0h,
生成 (2S,3S,4S,5R,6S)-5-Acetoxy-3-[(2R,3R,4R,5S,6R)-3-azido-6-(tert-butyl-diphenyl-silanyloxymethyl)-4-(4-oxo-pentanoyloxy)-5-sulfooxy-tetrahydro-pyran-2-yloxy]-6-methoxy-4-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester