Diisopropylethylamine → HCID 118522476, compound

Participants

Reaction Steps

To a solution of {3-(5-Chloro-2-difluoromethoxyphenyl)-4-[(pyrazolo[1,5-a]pyrimidine-3-carbonyl)amino]pyrazol-1-yl}acetic acid (100 mg) in DMF (2 mL) was added HATU (100 mg, 0.26 mmol), DIEA (85 mg, 0.66 mmol), and 4-(piperidin-4-yl)morpholine hydrochloride (67 mg, 0.32 mmol). The resulting solution was stirred at room temperature overnight. The crude product (60 mg) was purified by Prep-HPLC with the following conditions (1#-Pre-HPLC-006(Waters)): Column, XSelect CSH Prep C18 OBD Column, 5 um, 19*150 mm; mobile phase, Water with 10 mM NH4CO3 and MeCN (20.0% MeCN up to 35.0% in 8 min); Detector, 254/220. This resulted in 28.3 mg (21%) of N-[3-[5-chloro-2-(difluoromethoxy)phenyl]-1-[2-[4-(morpholin-4-yl)piperidin-1-yl]-2-oxoethyl]-1H-pyrazol-4-yl]pyrazolo[1,5-a]pyrimidine-3-carboxamide as a yellow solid. LCMS (Method 20) [M+H]+=615.2, RT=1.84 min. 1H NMR (300 MHz, DMSO-d6) δ: (ppm) 9.75 (s, 1H), 9.34 (dd, 1H, J=1.5, 6.9 Hz), 8.69-8.67 (m, 2H), 8.31 (s, 1H), 7.62 (dd, 1H, J=2.7, 8.7 Hz), 7.55 (d, 1H, J=2.7 Hz), 7.45 (d, 1H, J=8.7 Hz), 7.28 (dd, 1H, J=4.2, 6.9 Hz), 7.02 (t, 1H, J=73.2 Hz), 5.24-5.21 (m, 2H), 4.42-4.31 (m, 1H), 4.02-3.95 (m, 1H), 3.55 (t, 4H, J=4.5 Hz), 3.16-3.02 (m, 1H), 2.78-2.64 (m, 1H), 2.49-2.45 (m, 5H), 1.90-1.76 (m, 2H), 1.54-1.21 (m, 2H).

Provenance & Evidence