4-[2-(benzyloxycarbonylamino)ethyl]phenyl 2,4-di-O-methyl-3-O-{4-O-benzyl-2-O-methyl-3-O-[4-O-acetyl-2-O-methyl-3-O-(3,6-di-O-benzyl-2-O-chloroacetyl-4-O-methyl-α-D-mannopyranosyl)-α-L-fucopyranosyl]-α-L-rhamnopyranosyl}-α-L-rhamnopyranoside 在
hydrazine dithiocarbonate 作用下,
以
溶剂黄146 为溶剂,
反应 0.5h,
以86%的产率得到4-[2-(benzyloxycarbonylamino)ethyl]phenyl 2,4-di-O-methyl-3-O-{4-O-benzyl-2-O-methyl-3-O-[4-O-acetyl-2-O-methyl-3-O-(3,6-di-O-benzyl-4-O-methyl-α-D-mannopyranosyl)-α-L-fucopyranosyl]-α-L-rhamnopyranosyl}-α-L-rhamnopyranoside