反应详情

A solution of 4-(6-pyridin-3-ylpyrazolo[1,5-a]pyrimidin-3-yl)thiophene-2-carboxylic acid hydrochloride (20 mg, 0.06 mmol), 2,2,2-trifluoro-1-(6-methylpyridin-2-yl)ethanamine (step C, 12 mg, 0.06 mmol), BOP (41 mg, 0.09 mmol) and N,N-diisopropylethylamine (16 □L, 0.09 mmol) in DMF (0.6 mL) was stirred at 40° C. for 4 hours. The reaction was partitioned between water and ethyl acetate. The organics were dried over sodium sulfate, filtered and evaporated in vacuo. Purification by reverse phase LC gave 4-(6-pyridin-3-ylpyrazolo[1,5-a]pyrimidin-3-yl)-N-[2,2,2-trifluoro-1-(6-methylpyridin-2-yl)ethyl]thiophene-2-carboxamide. 1H NMR (600 MHz, CDCl3): δ 9.42 (bs, 1H), 9.11 (s, 1H), 9.00 (d, J=2.4 Hz, 1H), 8.84 (d, J=5.3 Hz, 1H), 8.81 (d, J=2.3 Hz, 1H), 8.55 (s, 2H), 8.34 (d, J=8.3 Hz, 1H), 8.17 (s, 1H), 7.99 (t, J=8.5 Hz, 1H), 7.85 (dd, J=7.9, 5.3 Hz, 1H), 7.58 (d, J=7.4 Hz, 1H), 7.48 (m, 1H), 6.13 (m, 1H), 3.48 (s, 3H). LC-MS EIMS: m/z 495.1 [M+H]+.

1. customThe reaction was partitioned between water and ethyl acetate
2. dry with materialThe organics were dried over sodium sulfate
3. filtrationfiltered
4. customevaporated in vacuo
5. customPurification by reverse phase LC