2,6-Lutidine → HCID 136286739, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of (S)-3-(8-methoxy-1-(pyrrolidin-3-ylamino)isoquinolin-3-yl)-1H-1,2,4-triazol-5(4H)-one hydrochloride (120 mg, 0.33 mmol) in DCM (8 mL) was added 2,6-dimethylpyridine (106 mg, 0.99 mmol). The resulting mixture was cooled to −78° C. Acryloyl chloride (120 mg, 1.20 mmol, 10 mg/mL in dry DCM) was added dropwise and the reaction mixture was stirred at −78° C. for 1.5 hours. The reaction was quenched with MeOH (5 mL) and the mixture was concentrated in vacuo. The crude product was purified by preparative HPLC to give the title compound (34 mg, 27%). 1H NMR (400 MHz, DMSO-d6) δ ppm 11.81 (s, 1H), 11.69 (s, 1H), 7.85 (dd, J=7.1, 14.5 Hz, 1H), 7.57-7.51 (m, 1H), 7.43 (d, J=3.3 Hz, 1H), 7.36 (d, J=8.0 Hz, 1H), 7.02 (d, J=8.0 Hz, 1H), 6.72-6.54 (m, 1H), 6.16 (m, 1H), 5.73-5.61 (m, 1H), 5.21-5.03 (m, 1H), 4.16 (m, 1H), 4.04-3.89 (m, 3H), 3.79 (m, 1H), 3.71-3.61 (m, 1H), 3.44 (m, 1H), 3.24 (m, 1H), 2.42-2.21 (m, 1H), 2.09-1.90 (m, 1H); ESI-MS m/z [M+H]+ 381.

Provenance & Evidence