Phenyl isocyanate → HCID 22050706, compound

Participants

Reaction Steps

To a cooled (0° C.) solution of 4-{[2-(aminomethyl)-4-fluorobenzyl]oxy}-3-chloro-1-(2,6-difluorophenyl)-6-methylpyridin-2(1H)-one trifluoroacetate (0.25 g, 0.48 mmol) in DMA (2.0 mL) was added 4-methylmorpholine (0.06 mL, 0.53 mmol) and phenyl isocyanate (0.06 mL, 0.53 mmol). The reaction was stirred at RT for 1.5 h. Solvent distilled and crude product purified by preparatory HPLC. Acetonitrile was evaporated and the solution washed with 5% NaHCO3 (30 mL) and extracted in DCM (3×25 mL). The organic extracts were dried over Na2SO4, filtered, and concentrated to a white solid, dried in vacuo (0.18 g, 71%). 1H NMR (CD3OD/400 MHz) δ7.60 (m, 1H), 7.54 (m, 1H), 7.33 (d, 2H, J=7.6 Hz), 7.22 (m, 5H), 7.06 (m, 1H), 6.95 (t, 1H, J=7.2 Hz), 6.73 (s, 1H), 5.44 (s, 2H), 4.53 (s, 2H), 2.07 (s, 3H). ESHRMS m/z 528.1304 (M+H calculated for C27H22ClF3N3O3 requires 528.1296).

Provenance & Evidence