methyl 3-chloro-1-methyl-4-[[(1R)-2,2,2-trifluoro-1-methyl-ethyl]sulfamoyl]pyrrole-2-carboxylate 、
2,3-difluoropyridin-4-amine hydrochloride 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
以163 mg的产率得到3-chloro-N-(2,3-difluoro-4-pyridyl)-1-methyl-4-[[(1R)-2,2,2-trifluoro-1-methylethyl]sulfamoyl]pyrrole-2-carboxamide