methyl [phenyl 5-acetamido-8,9-O-(p-methoxy)benzylidene-3,5-dideoxy-2-thio-D-glycero-α-D-galacto-non-2-ulopyranosid]onate 、
乙酸酐 在
吡啶 作用下,
反应 5.0h,
以1.25 g的产率得到methyl [phenyl 5-acetamido-3,5-dideoxy-4,7-di-O-acetyl-8,9-(p-methoxybenzylidenyl)-2-thio-D-glycero-α-D-galacto-non-2-ulopyranoside]onate