重氮甲烷 、
6-Acetamido-2,3,5-tri-O-acetyl-1,6-didesoxy-1-<3,4-dihydro-2,4-dioxo-1(2H)-pyrimidinyl>-L-glycero-α-L-ido-heptofuranuronsaeure-methylester 以
甲醇 、
乙醚 为溶剂,
反应 1.5h,
以93%的产率得到6-Acetamido-2,3,5-tri-O-acetyl-1,6-didesoxy-1-<3,4-dihydro-3-methyl-2,4-dioxo-1(2H)-pyrimidinyl>-L-glycero-α-L-ido-heptofuranuronsaeure-methylester