2,6-Difluoro-4-methoxybenzoic acid → 4-(2,6-difluoro-4-methoxy-benzoylamino)-1H-pyrazole-3-carboxylic acid

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The compound was prepared in a manner analogous to 4-(2,6-difluoro-benzoylamino)-1H-pyrazole-3-carboxylic acid (Example 16D), but using 2,6-difluoro-4-methoxybenzoic acid as the starting acid, to give 4-(2,6-difluoro-4-methoxy-benzoylamino)-1H-pyrazole-3-carboxylic acid (1.58 g) as a white solid. (1H NMR (300 MHz, DMSO-d6) δ 13.0 (s, 2H), 10.7 (s, 1H), 8.0 (s, 1H), 6.9 (s, 1H), 6.8 (s, 1H), 3.7 (s, 3H)).

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