5-(furan-2-yl)-4H-pyrazole-3-carboxylic acid → HCID 178509583, compound

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Reaction Steps

The title compound was prepared using the method of Example 54 but starting from 5-(2-furyl)-4H-pyrazole-3-carboxylic acid (36 mg; 0.20 mmol) and 4-(1-(2-aminoethyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile (50 mg; 0.20 mmol). Crude product was purified by chromatography (CombiFlash, silica column, eluent: 0-100% MeOH/DCM) to obtain 29 mg (36%) of the title compound. 1H-NMR (400 MHz; d1-CDCl3): δ 3.90-3.96 (m, 2H), 4.41 (t, 2H), 6.51-6.53 (m, 1H), 6.61 (d, 1H), 6.66 (d, 1H), 6.95 (s, 1H), 7.48-7.50 (m, 2H), 7.61 (broad s, 1H), 7.68 (d, 1H), 7.76-7.79 (m, 1H), 8.11 (s, 1H), 10.45 (broad s, 1H).

Provenance & Evidence