反应详情

A mixture of 2-(4-methoxy-7-(3-pivalamido-1H-1,2,4-triazol-1-yl)-1H-pyrrolo[2,3-c]pyridin-3-yl)-2-oxoacetic acid (15 mg, 0.039 mmol), 4-(1-(pyridin-2-yl)-1H-tetrazol-5-yl)piperazin-1-ium chloride (11.43 mg, 0.043 mmol), 2-(1H-Benzotriazol-1-yl)-1,1,3,3-tetramethyluronium tetrafluoroborate (13.71 mg, 0.043 mmol) and N,N-diisopropyl ethylamine (0.022 ml, 0.124 mmol) in DMF (1 ml) was stirred overnight at room temperature. The reaction mixture was filtered through a silica gel pad and concentrated under reduced pressure. The resulting crude was purified by prep HPLC to give N-(1-(4-methoxy-3-(2-oxo-2-(4-(1-(pyridin-2-yl)-1H-tetrazol-5-yl)piperazin-1-yl)acetyl)-1H-pyrrolo[2,3-c]pyridin-7-yl)-1H-1,2,4-triazol-3-yl)pivalamide (10 mg, 43%) as white solid. LCMS: m/e 600.47 (M+H)+, ret time 2.67 min (method 4). 1H NMR (500 MHz, DMSO-D6) δ ppm 1.22 (s, 9H) 3.23-3.29 (m, 2H) 3.39-3.49 (m, 4H) 3.68-3.74 (m, 2H) 3.99 (s, 3H) 7.64 (dd, J=7.63, 4.88 Hz, 1H) 7.85 (d, J=8.24 Hz, 1H) 7.88 (s, 1H) 8.13-8.18 (m, 1H) 8.21 (s, 1H) 8.23 (d, J=3.66 Hz, 1H) 8.64-8.69 (m, 1H) 11.36 (s, 1H) 12.59 (d, J=3.36 Hz, 1H)

1. filtrationThe reaction mixture was filtered through a silica gel pad
2. concentrationconcentrated under reduced pressure
3. customThe resulting crude was purified by prep HPLC