反应详情

2,2-dimethyl-propionic acid 5-(4-amino-3-dimethylcarbamoyl-phenyl)-3-(2-ethyl-2H-pyrazol-3-yl)-pyrrolo[2,3-b]pyridin-1-ylmethyl ester was dissolved in tetrahydrofuran. 1 M sodium hydroxide in methanol was added to the mixture, and the reaction was stirred for 2 h at room temperature until complete conversion was confirmed by HPLC-MS. Saturated aqueous sodium bicarbonate solution was added and the mixture extracted with dichloromethane. The organic layer was dried over sodium sulfate and concentrated. The crude material was purified by preparative HPLC to give 2-amino-5-[3-(2-ethyl-2H-pyrazol-3-yl)-1H-pyrrolo[2,3-b]pyridin-5-yl]-N,N-dimethyl-benzamide. 1H-NMR (250 MHz, d6-DMSO) δ 12.12 (s, 1H), 8.51 (d, J=2.0 Hz, 1H), 7.97 (d, J=2.3 Hz, 1H), 7.76 (d, J=2.3 Hz, 1H), 7.55 (s, 1H), 7.47 (d, J=8.8 Hz, 1H), 7.35 (d, J=2.0 Hz, 1H), 6.82 (d, J=8.0 Hz, 1H), 6.53 (s, 1H), 5.29 (s, 2H), 4.20 (quart., J=7.3 Hz, 2H), 2.96 (s, 6H), 1.32 (t, J=7.1 Hz, 3H); MS: m/z 375.1 (M+H+).

1. extractionthe mixture extracted with dichloromethane
2. dry with materialThe organic layer was dried over sodium sulfate
3. concentrationconcentrated
4. customThe crude material was purified by preparative HPLC