硫光气 、 ethyl 3,4-di-O-acetyl-2-amino-2-deoxy-6-O-(2',3',4',6'-tetra-O-acetyl-β-D-glucopyranosyl)-α-D-glucopyranoside hydrobromide 在
calcium carbonate 作用下,
以
氯仿 为溶剂,
反应 0.67h,
以78%的产率得到ethyl 3,4-di-O-acetyl-2-deoxy-2-isothiocyanato-6-O-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-α-D-glucopyranoside