5-(furan-2-yl)-4H-pyrazole-3-carboxylic acid → HCID 178422828, 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 (56 mg; 0.32 mmol) and 4-(1-(2-amino-2-methylpropyl)-1H-pyrazol-3-yl)-2-methylbenzonitrile (80 mg; 0.32 mmol). Crude product was purified by chromatography (CombiFlash, silica-C18 column, eluent: 0-100% ACN/water) to obtain 16 mg of the product which was further purified by preparative HPLC (Waters Deltaprep 4000, SymmPrep 56.2, 25-80% ACN/AcONH4) to obtain 5.3 mg of he title compound. 1H-NMR (400 MHz; d1-CDCl3): δ 1.52 (s, 6H), 2.54 (s, 3H), 4.50 (s, 2H), 6.52 (dd, 1H), 6.57 (d, 1H), 6.64 (d, 1H), 6.90 (s, 1H), 7.44 (d, 1H), 7.48 (d, 1H), 7.59 (d, 1H), 7.70 (dd, 1H), 7.75 (d, 1H), 10.31 (broad s, 1H).

Provenance & Evidence