反应详情

温度

80 °C

DMF (5 mL) and TEA (0.2 mL) were added to 3-cyclopropyl-1-pyridin-2-yl-1H-thieno[2,3-c]pyrazole-5-carboxylic acid (143 mg), 6-(tetrazol-5-yl)spiro[chroman-2,4′-piperidin]-4-one hydrochloride (177 mg), EDCI (119 mg) and HOBT (90 mg), heated at 80° C. and stirred for 2 hours. This was cooled to room temperature, iced water was added to it, and its pH was adjusted at 2.5 with 1 N HCl added thereto. The formed crystal was taken out through filtration, washed with water, washed with Et2O and dried in vacuum at 70° C. to obtain the title compound as a pale brown powder. 1H-NMR (400 MHz, DMSO-d6) δ: 8.54-8.51 (1H, br m), 8.43 (1H, d, J=2.2 Hz), 8.25 (1H, dd, J=8.3, 2.2 Hz), 8.03-7.97 (1H, m), 7.88 (1H, d, J=8.3 Hz), 7.51 (1H, s), 7.36-7.27 (2H, m), 4.24-4.14 (2H, br m), 3.4-3.6 (2H, br m), 3.00 (2H, s), 2.31-2.22 (1H, m), 2.10-2.02 (2H, br m), 1.93-1.81 (2H, br m), 1.11-1.04 (4H, m). MS [M+H]+=553.

1. temperatureThis was cooled to room temperature
2. additionadded
3. filtrationThe formed crystal was taken out through filtration
4. washwashed with water
5. washwashed with Et2O
6. customdried in vacuum at 70° C.