乙酸酐 、
Benzyl-O--(2-->3)-O-(2-acetamido-2-desoxy-4,6-O-ethyliden-β-D-glucopyranosyl)-(1-->6)-3-O-benzyl-2-(benzyloxycarbonyl)amino-2-desoxy-α-D-glucopyranosid 在
sodium acetate 作用下,
反应 120.0h,
以22%的产率得到Benzyl-O-<(4,5,8-tri-O-acetyl-3-desoxy-α-D-manno-2-octulopyranosyl)ono-1,7-lacton>-(2->3)-O-(2-acetamido-2-desoxy-4,6-O-ethyliden-β-D-glucopyranosyl)-(1->6)-4-O-acetyl-3-O-benzyl-2-(benzyloxycarbonyl)amino-2-desoxy-α-D-glucopyranosid