5-tert-Butyl-1,2-oxazole-3-carboxylic acid → (S)-5-tert-butyl-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)isoxazole-3-carboxamide

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Reaction Steps

(S)-5-tert-butyl-N-(1-(3-(3-chloro-4-cyanophenyl)-1H-pyrazol-1-yl)propan-2-yl)isoxazole-3-carboxamide was prepared using the method of Example 34(d) starting from (S)-4-(1-(2-aminopropyl)-1H-pyrazol-3-yl)-2-chlorobenzonitrile (200 mg, 0.69 mmol) and 5-tert-butylisoxazole-3-carboxylic acid (132 mg, 0.782 mmol). The product was purified by Flash-chromatography (reverse phase). Yield 53.6%. 1H-NMR (400 MHz; MeOD): δ 1.26 (d, 3H), 1.35 (s, 9H), 4.26-4.45 (m, 2H), 4.51-4.63 (m, 1H), 6.34 (s, 1H), 6.77 (d, 1H), 7.70 (d, 1H), 7.77 (dd, 1H), 7.87 (dd, 1H), 8.09 (dd, 1H).

Provenance & Evidence