3-O-chloroacetyl-2-deoxy-4-O-(4'-N'-monodemethyl-N'-trichloroethoxycarbamoyl-β-D-forosaminyl)-2-N-methyl-N-trichloroethoxycarbamoyl-D-xylopyranosyl trichloroacetimidate 、
环己醇 在
ytterbium(III) triflate 作用下,
以
二氯甲烷 为溶剂,
反应 1.08h,
以92%的产率得到cyclohexyl 3-O-chloroacetyl-2-deoxy-4-O-(4'-N'-monodemethyl-N'-trichloroethoxycarbamoyl-β-D-forosaminyl)-2-N-methyl-N-trichloroethoxycarbamoyl-β-D-xylopyranoside