反应详情

To a solution of 4-{4-[6-amino-5-(8-fluoro-5-methylisoquinolin-3-yl)-pyridin-3-yl]-pyrazol-1-yl}-piperidine-1-carboxylic acid tert-butyl ester (11.5 mg, 0.0229 mmol) in DCM (0.60 mL, 9.4 mmol) was added 1.0 M of HCl in Et2O (0.80 mL, 0.80 mmol), and the mixture was stirred at ambient temperature for 2 h. Almost immediately a pale yellow solid precipitated. The solvents were evaporated, and the residue was transferred into a vial and dried in vacuo overnight, yielding the title compound as yellow solid. 1H NMR (400 MHz, DMSO-d6): δ=14.6 (very brs, 1H), 9.59 (d, J=0.8 Hz, 1H), 9.19-9.09 (brm, 1H), 9.02-8.91 (brm, 1H), 8.88 (d, J=2.4 Hz, 1H), 8.56 (brs, 1H), 8.54 (s, 1H), 8.48 (s, 1H), 8.47 (d, J=2.4 Hz, 1H), 8.15 (s, 1H), 7.73 (ddd, J=0.8, 6.4, 8.0 Hz, 1H), 7.51 (dd, J=8.0, 10.2 Hz, 1H), 4.59-4.50 (mc, 1H), 3.40 (brd, J=12.2 Hz, 2H), 3.11 (brq, J=11.4 Hz, 2H), 2.76 (s, 3H), 2.30-2.12 (m, 4H). MS(ES+): m/z=403.16 (23) [MH+], 320.12 (100) [MH+-piperidine]. HPLC: tR=1.89 min (polar—5 min, ZQ2).

1. customAlmost immediately a pale yellow solid precipitated
2. customThe solvents were evaporated
3. customdried in vacuo overnight