三氯乙腈 、 2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-D-mannopyranose 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,
反应 2.0h,
以823 mg的产率得到2,3,4,6-tetra-O-acetyl-α-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranosyl-(1->6)-2,3,4-tri-O-benzoyl-α-D-mannopyranosyl trichloroacetamidate