反应详情

The compound was prepared in a manner analogous to 4-(2,6-difluoro-benzoylamino)-1H-pyrazole-3-carboxylic acid (Example 16D), but using 5-chloro-2-methoxy-benzoic acid as the starting acid to give 4-(5-chloro-2-methoxy-benzoylamino)-1H-pyrazole-3-carboxylic acid (12 g) as a colourless solid. (LC/MS: Rt 2.48, [M−H+]− 294)