Sodium Hydroxide → 5-{1-[4-hydroxy-1-methyl-5-(4-trifluoromethylphenyl)-1H-pyrazol-3-yl]ethylidenehydrazinocarbonyl}thiophene-2-carboxylic Acid

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Reaction Steps

From methyl 5-{[2-(1-{4-hydroxy-1-methyl-5-[4-(trifluoromethyl)phenyl]-1H-pyrazol-3-yl}ethylidene)hydrazino]carbonyl}-2-thiophenecarboxylate (150 mg, 0.32 mmol) and 1 M sodium hydroxide aqueous solution (1.60 mL, 1.60 mmol), 89.0 mg of the desired product was obtained in the same manner as in Synthetic Example 58 as a pale yellow solid (yield 61%).

Provenance & Evidence