N-(9-fluorenylmethoxycarbonyl)-O-{β-D-galactopyranosyl-(1->4)-2-acetoamido-2-deoxy-β-D-glucopyranosyl-(1->6)-[β-D-galactopyranosyl-(1->3)]-2-acetoamido-2-deoxy-α-D-galactopyranosyl}-L-serine tert-butyl ester 、 Bis(sodium) guanosine 5'-β-L-fucopyranosyl-diphosphate 在
magnesium chloride 、 manganese(ll) chloride 作用下,
反应 1.0h,
以96%的产率得到N-(9-fluorenylmethoxycarbonyl)-O-{β-D-galactopyranosyl-(1->4)-[α-L-fucopyranosyl-(1->3)]-2-acetoamido-2-deoxy-β-D-glucopyranosyl-(1->6)-[β-D-galactopyranosyl-(1->3)]-2-acetoamido-2-deoxy-α-D-galactopyranosyl}-L-serine tert-butyl ester