9-(2-deoxy-1,4:3,6-dianhydro-D-glucitol-2-ylaminocarbonyloxymethyl)-2-methyl-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridine-3-carbonylguanidine 在
三氧化硫吡啶 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 2.0h,
以83%的产率得到2-deoxy-1,4:3,6-dianhydro-2-(3-guanidinocarbonyl-2-methyl-6,7,8,9-tetrahydro-5H-cyclohepta[b]pyridin-9-ylmethyloxycarbonylamino)-D-glucitol-5-yl hydrogen sulfate