重氮甲烷 、
p-(2-methoxycarbonylethyl)phenyl 4-O-(2,4-di-O-acetyl-3-O-methyl-β-D-glucopyranosyl)-α-L-rhamnopyranoside 在
三氟化硼乙醚 作用下,
以
二氯甲烷 为溶剂,
反应 1.5h,
生成 p-(2-methoxycarbonylethyl)phenyl 2,3-di-O-acetyl-4-O-(2,4-di-O-acetyl-3,6-di-O-methyl-β-D-glucopyranosyl)-α-L-rhamnopyranoside 、 p-(2-methoxycarbonylethyl)phenyl 2,3-di-O-methyl-4-O-(2,6-di-O-acetyl-3,4-di-O-methyl-β-D-glucopyranosyl)-α-L-rhamnopyranoside 、 p-(2-methoxycarbonylethyl)phenyl 2,3-di-O-methyl-4-O-(2,4-di-O-acetyl-3,6-di-O-methyl-β-D-glucopyranosyl)-α-L-rhamnopyranoside