N-(9-fluorenylmethoxycarbonyl)-L-seryl-L-seryl-L-serine ethyldiisopropylammonium salt 、 N4-{O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->2)-O-α-D-mannopyranosyl-(1->3)-[O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->2)-O-α-D-mannopyranosyl-(1->6)]-O-β-D-mannopyranosyl-(1->4)-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->4)-(2-acetamido-2-deoxy-β-D-glucopyranosyl)}-L-asparaginyl-L-tyrosine methyl ester 在
2,4,6-三甲基吡啶 、 O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate 作用下,
以
N-甲基吡咯烷酮 为溶剂,
反应 0.17h,
以69.9%的产率得到N4-{O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->2)-O-α-D-mannopyranosyl-(1->3)-[O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->2)-O-α-D-mannopyranosyl-(1->6)]-O-β-D-mannopyranosyl-(1->4)-O-(2-acetamido-2-deoxy-β-D-glucopyranosyl)-(1->4)-(2-acetamido-2-deoxy-β-D-glucopyranosyl)}-N2-(9-fluorenylmethoxycarbonyl-L-seryl-L-seryl-L-seryl)-L-asparaginyl-L-tyrosine methyl ester