1-Ethyl-3-(3'-dimethylaminopropyl)carbodiimide → (S)-N-(1-(3-(3-Chloro-4-cyano-5-fluorophenyl)-1H-pyrazol-1-yl)propan-2-yl)-7-oxo-5,6,7,8-tetrahydroimidazo[1,2-a]pyrimidine-2-carboxamide

Participants

Reaction Steps

7-Oxo-5,6,7,8-tetrahydroimidazo[1,2-a]pyrimidine-2-carboxylic acid (1.513 mmol, 0.274 g) was dissolved in DMF (5 ml) under nitrogen atmosphere. EDCI (1.891 mmol, 0.362 g), DIPEA (3.78 mmol, 0.489 g) and HOBt (1.891 mmol, 0.255 g) were added and the resulting mixture was stirred for 20 min at RT. (S)-4-(1-(2-Aminopropyl)-1H-pyrazol-3-yl)-2-chloro-6-fluorobenzonitrile (1.260 mmol, 0.351 g) dissolved in DMF (5 ml) was added and the resulting mixture was stirred at RT for 2 days. The mixture was diluted with water and EtOAc, washed with 2M Na2CO3, water and brine. The combined organics were dried, filtered and evaporated. The crude product was purified by preparative HPLC. 0.0089 g of the title compound was obtained. 1H-NMR (400 MHz, CDCl3): δ 1.28 (d, 3H), 2.89 (t, 2H), 4.16 (t, 2H), 4.33-4.39 (m, 2H), 4.54-4.65 (m, 1H), 6.59 (d, 1H), 7.36 (s, 1H), 7.53 (d, 1H), 7.57 (dd, 1H), 7.72-7.75 (m, 1H), 7.83 (d, 1H).

Provenance & Evidence