trichloroacetimido 2-deoxy-2-trichloroethylcarbamoyl-3,4-di-O-acetyl-6-O-(2,3,4-tri-O-acetyl-6-deoxy-α-L-galactosyl)-β-D-glucopyranoside 、
N-(9-fluorenylmethoxycarbonyl)-L-serine allyl ester 在
三氟甲磺酸三甲基硅酯 作用下,
以
二氯甲烷 为溶剂,
以89%的产率得到N-(9H-fluoren-9-yl-methoxycarbonyl)-O-(2-deoxy-2-trichloroethylcarbamoyl-3,4-di-O-acetyl-6-O-(2,3,4-tri-O-acetyl-6-deoxy-α-L-galactosyl)-β-D-glucopyranosyl)-L-serine allyl ester