反应详情

To a solution of 6-methylquinazoline-2-carboxylic acid (0.040 g, 0.21 mmol, 1.2 eq) and (S)-1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-amine (0.49 g, 0.18 mmol, 1 eq) in 1 mL of DMSO was added triethylamine (0.10 mL, 0.7 mmol, 4 eq) and HATU (0.075 g, 0.20 mmol, 1.1 eq). After stirring for 1 h at room temperature, the mixture was concentrated and purified by HPLC to afford (S)—N-(1-([1,2,4]triazolo[4,3-a]pyrazin-8-yl)pyrrolidin-3-yl)-6-methylquinazoline-2-carboxamide (0.028 g, 0.07 mmol, 42%). 1H NMR (400 MHz, DMSO) δ 9.62 (s, 1 H), 9.31 (t, J=3.9 Hz, 1 H), 8.08-8.00 (m, 2 H), 8.00-7.92 (m, 1 H), 7.85 (d, J=5.1 Hz, 1 H), 7.29 (d, J=5.0 Hz, 1 H), 4.82-4.70 (m, 1 H), 4.70-3.60 (br, 4 H), 2.56 (s, 3H), 2.40-2.20 (br, 2 H); MS: (ES) m/z calculated for C19H18N8O [M+H]+ 375.2, found 375.

1. concentrationthe mixture was concentrated
2. custompurified by HPLC