反应详情

Sodium borohydride (8.21 mg, 0.217 mmol) was added into a flask under nitrogen atmosphere. Dry ethanol was added and the mixture was stirred. (S)-3-acetyl-N-(1-(3-(3-chloro-4-cyano-5-fluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-1H-pyrazole-5-carboxamide (45 mg, 0.108 mmol) in dry ethanol was added slowly and the mixture was stirred at RT for 2.5 h. pH of the reaction mixture was adjusted to ˜2 by addition of 1M HCl and the mixture was evaporated to dryness. The product was purified by Flash-chromatography. Yield 57.5%. 1H-NMR (400 MHz; DMSO): 1.13 (d, 3H), 1.37 (d, 3H), 4.22-4-51 (m, 3H), 4.73-4.85 (m, 1H), 5.38 (d, 1H), 6.39 (s, 1H), 6.99 (d, 1H), 7.82 (d, 1H), 7.86 (d, 1H), 7.97 (d, 1H), 8.09 (d, 1H), 13.00 (s, 1H)

1. stirringthe mixture was stirred at RT for 2.5 h. pH of the reaction mixture
2. customthe mixture was evaporated to dryness
3. customThe product was purified by Flash-chromatography