phenyl-N'-cyano-N-(4-sulfamoylphenyl)carbamimidate 、
3-(S)-(6-hydrazino-5-methoxypyrimidin-4-ylamino)piperidine-1-carboxylic acid tert-butyl ester 在
4-二甲氨基吡啶 作用下,
以
N-甲基吡咯烷酮 、
异丙醇 为溶剂,
以63%的产率得到3-(S)-{6-[5-amino-3-(4-sulfamoylphenylamino)-[1,2,4]triazol-1-yl]-5-methoxypyrimidin-4-ylamino}piperidine-1-carboxylic acid tert-butyl ester