Formamidine acetate → HCID 51352545, compound

Participants

Reaction Steps

N-{4-[5-cyclopropyl-3-(trifluoromethyl)-1H-pyrazol-1-yl]-3,5-difluorophenyl}-2-[(dimethylamino)methylene]-3-oxobutanamide (700 mg, 1.6 mmol) and formamidine acetate (282 mg, 2.7 mmol) were dissolved in ethanol and added NaOEt (120 mg, 3.4 mmol). The above mixture was refluxed for 3 hr. Ethanol was removed on rotavapour and worked up (H2O/AcOEt) to obtain the crude. Crude was purified by column on 60-120 mesh silica gel using AcOEt and Petether (35:65) as eluent to obtain the title compound (34 mg) as a pale-yellow solid. M.P.: 147-150° C. 1H-NMR (δ ppm, DMSO-d6, 400 MHz): 11.25 (s, 1H), 9.18 (s, 1H), 8.96 (s, 1H), 7.73 (d, J 9.9, 2H), 6.69 (s, 1H), 2.61 (s, 3H), 1.65-1.56 (m, 1H), 0.95-0.86 (m, 2H), 0.80-0.72 (m, 2H). MS (m/z): 424.09 [M+H]+.

Provenance & Evidence