phenylthio 2-O-acetyl-3,4-di-O-benzyl-6-O-tert-butyldiphenylsilyl-β-D-glucopyranosyl-(1->3)-4,6-O-benzylidene-2-deoxy-2-(2',2',2'-trichloroethoxycarbonylamino)-β-D-galactopyranoside 、
3-(benzyloxycarbonyl)aminopropyl 2-O-acetyl-3,4,6-tri-O-benzyl-β-D-glucopyranosyl-(1→3)-6-[O-benzyl-2-deoxy-2-(2′,2′,2′-trichloroethoxycarbonylamino)-β-D-galactopyranosyl-(1→3)-2,3-tri-O-benzyl-α-D-glucopyranosyl-(1→4)]-2,4,6-tri-O-benzyl-α-D-mannopyranoside 在
N-碘代丁二酰亚胺 、
三氟甲磺酸 作用下,
以
二氯甲烷 为溶剂,
反应 6.0h,
以62%的产率得到3-(benzyloxycarbonyl)aminopropyl 2-O-acetyl-3,4,6-tri-O-benzyl-β-D-glucopyranosyl-(1->3)-[6-O-tertbutyldiphenylsilyl-2-O-acetyl-3,4-di-O-benzyl-β-D-glucopyranosyl-(1->3)-4,6-O-benzylidene-2-deoxy-2-(2',2',2'-trichloroethoxycarbonylamino)-β-D-galactopyranosyl-(1->4)-2,3,6-tri-O-benzyl-α-D-glucopyranosyl-(1->4)]-6-O-benzyl-2-deoxy-2-(2',2',2'-trichloroethoxycarbonylamino)-β-D-galactopyranosyl-(1->3)-2,4,6-tri-O-benzyl-α-D-mannopyranoside