Gal2Ac3Ac4Ac6Ac(b1-4)GlcNAc3Ac6Ac(b1-3)GalNAc4Ac6Ac(b1-4)[Bz(-2)][Bz(-3)]b-Glc6Ac 、
三氯乙腈 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,
以76 mg的产率得到2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl-(1->4)-2-acetamido-3,6-di-O-acetyl-2-deoxy-β-D-glucopyranosyl-(1->3)-2-acetamido-4,6-di-O-acetyl-2-deoxy-β-D-galactopyranosyl-(1->4)-6-O-acetyl-2,3-di-O-benzoyl-α-D-glucopyranosyl trichloroacetimidate