反应详情

温度

80 °C

An orange solution of N-(7-chloro-2-methylpyrazolo[1,5-a]pyrimidin-5-yl)-4-(trifluoromethoxy)benzamide (14A, 69 mg, 0.186 mmol), 2-(piperidin-4-yl)acetamide hydrochloride (40 mg, 0.279 mmol), and N,N-diisopropylethylamine (96 mg, 0.745 mmol) in DMF (1.8 mL) was stirred at 100° C. for 2 h, cooled to 80° C., and stirred overnight. After cooling to room temperature, the mixture was diluted with a few drops of DMSO and methanol, filtered, and then purified by preparatory HPLC (30-40% MeCN/H2O gradient+0.01% TFA). Lyophilization of the combined fractions gave the titled compound as a yellow solid (13.1 mg, 15%). 1H NMR (DMSO-d6) δ: 10.96 (s, 1H), 8.02-8.14 (m, 2H), 7.44 (d, J=7.8 Hz, 2H), 7.26 (br. s., 1H), 7.23 (s, 1H), 6.74 (br. s., 1H), 6.08 (s, 1H), 4.36 (d, J=12.4 Hz, 2H), 2.90-3.03 (m, 2H), 2.31 (s, 3H), 1.97-2.01 (m, 2H), 1.89-1.97 (m, 1H), 1.74 (d, J=11.6 Hz, 2H), 1.24-1.38 (m, 2H); ESI-MS: m/z 477.4 (M+H)+.

1. temperatureAfter cooling to room temperature
2. filtrationfiltered
3. custompurified by preparatory HPLC (30-40% MeCN/H2O gradient+0.01% TFA)