反应详情

tert-Butyl N-(2-aminoethyl)carbamate (0.500 g, 3.12 mmol) and DIPEA (0.83 mL, 4.68 mmol, 1.5 eq) was added to a solution of 4-chloro-2-methylsulfanylpyrimidine-5-carboxylic acid (4-fluorophenyl)amide (0.929 g, 3.12 mmol) in DMF (5.0 ml) and stirred under N2 overnight. The reaction mixture was diluted with ethyl acetate (50 mL) and washed twice with water (50 mL). Upon precipitation of product out of the organic layer of the mixture, the white solid was filtered, and recrystallized from hot ethyl acetate to yield 1.06 g (80%) of the titled product as a white solid. 1H NMR: (d6-DMSO) δ 10.21 (s, 1H), 8.56 (s, 1H), 7.64 (m, 2H), 7.16 (m, 2H), 6.92 (t, 1H), 3.48 (m, 2H), 3.30 (s, 3H), 3.11 (m, 2H), 1.31 (s, 9H); HPLC: Rt=4.32 min; MS (ESI): m/z 419.97 (M−H)−.

1. washwashed twice with water (50 mL)
2. customUpon precipitation of product out of the organic layer of the mixture
3. filtrationthe white solid was filtered
4. customrecrystallized from hot ethyl acetate