Triethylamine → HCID 22050725, compound

Participants

Reaction Conditions

Reaction Steps

A 10 mL round bottomed flask equipped with stirbar and nitrogen inlet was charged with 1-[5-(aminomethyl)-2-fluorophenyl]-3-chloro-4-[(2,4 difluorobenzyl)oxy]-6-methylpyridin-2(1H)-one hydrochloride (250 mg, 0.56 mmol), propionyl chloride (49 μL, 0.56 mmol), triethylamine (195 μL, 1.4 mmol) and tetrahydrofuran (4.0 mL). After stirring at 25° C. for 5 min the reaction was completed by LC-MS. The reaction mixture was poured into a saturated aqueous NH4Cl solution. The aqueous mixture was extracted with ethyl acetate. The organic phase was dried with Na2SO4 and concentrated in vacuo to obtain (240 mg, 91%) as a yellow solid. 1H NMR (400 MHz, (CD3)2SO) δ 8.3 (t, J=5.8 Hz, 1H), 7.6 (q, J=8.7 and 6.58 Hz, 1H), 7.38 (d, J=7.78 Hz, 1H), 7.3 (dd, J=2.6 and 7.6 Hz, 1H), 7.22 (d, J=7.51 Hz, 1H), 7.12 (td, J=2.0 and 6.5 Hz, 1H), 6.65 (s, 1H), 5.3 (s, 2H), 4.23 (d, J=3.6 Hz, 2H), 2.1 (q, J=7.7 Hz 2H), 1.98 (s, 3H), 0.98 (t, J=7.5 Hz, 3H) ppm. ES-HRMS m/z 465.1203 (M+H calcd for C23H21ClF3N2O3 requires 465.1187).

Provenance & Evidence