Hydrochloric Acid → HCID 56655846, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 1-[4-amino-6-(2,6-dimethyl-phenoxy)-7-fluoro-quinazolin-2-yl]-1H-pyrazole-4-carboxylic acid, ethyl ester (65 mg, 0.15 mmol), 1M aqueous LiOH (1.5 mL, 1.5 mmol), and THF (3 mL) was heated to 40° C. for 16 h with rapid stirring. The mixture was then cooled in an ice bath, and 1M HCl (1.5 mL, 1.5 mmol) was added. The resulting precipitate was collected by filtration, washed with water, and dried to furnish the titled compound (45 mg, 74%). MS (ESI): mass calcd. for C20H16FN5O3, 393.1; m/z found, 394.1 [M+H]+. 1H NMR (500 MHz, DMSO-d6): 12.72 (s, 1H), 8.91 (d, J=0.7 Hz, 1H), 8.42-7.98 (m, 3H), 7.70 (d, J=11.9 Hz, 1H), 7.37 (d, J=9.0 Hz, 1H), 7.25-7.20 (m, 2H), 7.17 (dd, J=8.6, 6.2 Hz, 1H), 2.12 (s, 6H).

Provenance & Evidence