Methyl 6-formylpyridine-3-carboxylate → methyl 6-((5-methyl-6-(4-(trifluoromethyl)-1H-pyrazol-1-yl)pyridin-3-ylimino)methyl)nicotinate

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Reaction Steps

A mixture of methyl 6-formylnicotinate (251.3 mg, 1.52 mmol) and 5-methyl-6-(4-(trifluoromethyl)-1H-pyrazol-1-yl)pyridin-3-amine (369 mg, 1.52 mmol) in toluene (8 mL) was heated at reflux under nitrogen overnight. The reaction mixture was concentrated to give methyl 6-((5-methyl-6-(4-(trifluoromethyl)-1H-pyrazol-1-yl)pyridin-3-ylimino)methyl)nicotinate (592 mg, 100%). 1H NMR (400 MHz, (CD3)2SO, δ): 9.09 (d, 1H), 8.83 (s, 1H), 8.72 (s, 1H), 8.35-8.30 (m, 2H), 8.20-8.17 (m, 1H), 8.11 (s, 1H), 7.90 (d, 1H), 3.79 (s, 3H), 2.32 (s, 3H).

Provenance & Evidence