N-(benzyloxycarbonyl) [4,6-di-O-acetyl-2-azido-2-deoxy-3-O-(3,4,6-tri-O-acetyl-2-O-(2,5-difluorobenzoyl)-β-D-galactopyranosyl)-(1->3)-α-D-galactopyranosyl]-L-serine t-butyl ester 、
硫代乙酸 在
吡啶 作用下,
反应 18.0h,
以67%的产率得到N-(benzyloxycarbonyl) [2-acetamido-4,6-di-O-acetyl-2-deoxy-3-O-(3,4,6-tri-O-acetyl-2-O-(2,5-difluorobenzoyl)-β-D-galactopyranosyl)-(1->3)-α-D-galactopyranosyl]-L-serine t-butyl ester