methyl (phenyl 5-amino-5-N,4-O-carbonyl-3,5-dideoxy-9-O-(5-amino-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosylonate)-2-thio-D-glycero-α-D-galacto-2-nonulopyranoside)onate 、
乙酸酐 在
吡啶 作用下,
反应 36.0h,
以97%的产率得到methyl (phenyl 5-amino-7,8-di-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-9-O-(5-amino-7,8,9-tri-O-acetyl-5-N,4-O-carbonyl-3,5-dideoxy-D-glycero-α-D-galacto-non-2-ulopyranosylonate)-2-thio-D-glycero-α-D-galacto-2-nonulopyranoside)onate