反应详情

温度

60 °C

A mixture of 1-(4-bromophenyl)-1,4-dihydropyrrolo[2,3-d]imidazole-5-carboxylic acid (70 mg, 0.23 mmol), CDI (75 mg, 0.46 mmol) and DIPEA (0.1 mL) in dry THF (3 mL) was stirred at 60° C. for 1 h and then treated with 2-methoxyethylamine (0.1 mL). After additional 2 h at 60° C., the mixture was concentrated under reduced pressure, the residue suspended in water (5 mL) and the solid collected by filtration and washed with water to give 1-(4-bromophenyl)-N-(2-methoxyethyl)-1,4-dihydropyrrolo[2,3-d]imidazole-5-carboxamide EXAMPLE 3. LC-MS (ES+): m/z 363/365 (1/1) [MH+]. 1H NMR (CDCl3, 400 MHz): δ=3.41 (s, 3H), 3.57 (t, J=4.9 Hz, 2H), 3.67 (app. q, J=4.9 Hz, 2H), 6.34 (br s, 1H, CONH), 6.60 (s, 1H), 7.42 (d, J=8.7 Hz, 2H), 7.64 (d, J=8.7 Hz, 2H), 7.88 (s, 1H), 9.32 (br s, 1H, NH).

1. waitAfter additional 2 h at 60° C.
2. concentrationthe mixture was concentrated under reduced pressure
3. filtrationthe solid collected by filtration
4. washwashed with water