2,3:5,6-Di-O-isopropylidene-4-O-(3',4'-O-isopropylidene-6'-O-(1-methyloxy-1-methylethyl)-β-D-galactopyranosyl)-aldehydo-D-glucose dimethyl acetal 、
碘甲烷 在
potassium hydroxide 作用下,
以
四氢呋喃 为溶剂,
反应 14.0h,
以63%的产率得到2,3:5,6-bis-O-(1-methylethylidene)-4-O-[2-O-methyl-6-O-(2-methoxy-2-methylethyl)-3,4-O-(1-methylethylidene)-β-D-galactopyranosyl]-aldehydo-D-glucose dimethyl acetal