3,4-di-O-benzyl-2,6-dideoxy-2,6-fluoro-D-galactopyranose 在
1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下,
以
二氯甲烷 为溶剂,
反应 36.5h,
生成
N-(9H-fluoren-9-yl)-methoxycarbonyl-O-(2-acetamido-2,6-dideoxy-6-fluoro-3-O-[3,4-di-O-benzyl-2,6-dideoxy-2,6-fluoro-β-D-galactopyranosyl]-α-D-galactopyranosyl)-L-threonine tert-butyl ester 、 N-(9H-fluoren-9-yl)-methoxycarbonyl-O-(2-acetamido-2,6-dideoxy-6-fluoro-3-O-[3,4-di-O-benzyl-2,6-dideoxy-2,6-fluoro-α-D-galactopyranosyl]-α-D-galactopyranosyl)-L-threonine tert-butyl ester