methyl-O-(2,3,4,6-tetra-O-benzoyl-β-D-glycopyranosyl)-(1<*>3)-O-<(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1<*>6)>-2-O-benzoyl-4-0-benzyl-1-thio-β-D-glucopyranoside 、
p-nitrophenyl N-(fluorenylmetoxycarbonyl)-L-serinate 在
4 A molecular sieve 、
三氟甲烷磺酸甲酯 作用下,
以
二氯甲烷 为溶剂,
以88%的产率得到N-(fluoren-9-ylmethoxycarbonyl)-O-(2,3,4,6-tetra-O-benzoyl-β-D-glycopyranosyl)-(1<*>3)-O-<(2,3,4,6-tetra-O-benzoyl-β-D-glucopyranosyl)-(1<*>6)>-(2-O-benzoyl-4-0-benzyl-β-D-glucopyranosyl)-(1<*>0)-L-serine p-nitrophenyl ester