4-azido-4-deoxy-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-α-D-glucopyranosyl fluoride 、 sodium N-[2-N[(S-(β-D-glucopyranosyl)-(1->4)-β-D-glucopyranosyl)-2-thioacetyl]aminoethyl]-1-naphthylamine-5-sulfonate 在
Cel
7B Glu
197Ala glucosynthase 作用下,
以
phosphate buffer 为溶剂,
反应 12.0h,
以94%的产率得到sodium N-[2-N[(S-(4-azido-4-deoxy-β-D-glucopyranosyl)-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl-(1->4)-β-D-glucopyranosyl)-2-thioacetyl]aminoethyl]-1-naphthylamine-5-sulfonate