(2S,3S,4S,5R,6S)-5-Acetoxy-3-[(2R,3R,4R,5S,6R)-3-amino-6-(tert-butyl-diphenyl-silanyloxymethyl)-4-hydroxy-5-(4-methoxy-benzyloxy)-tetrahydro-pyran-2-yloxy]-6-methoxy-4-(2-trimethylsilanyl-ethoxymethoxy)-tetrahydro-pyran-2-carboxylic acid methyl ester 在
phenylchlorosulfate 、
三乙胺 作用下,
以
二氯甲烷 为溶剂,
生成 [(2R,3R,4R,5S,6R)-2-[(2S,3S,4S,5R,6S)-5-acetyloxy-6-methoxy-2-methoxycarbonyl-4-(2-trimethylsilylethoxymethoxy)oxan-3-yl]oxy-6-[[tert-butyl(diphenyl)silyl]oxymethyl]-4-hydroxy-5-[(4-methoxyphenyl)methoxy]oxan-3-yl]sulfamic acid