Acetyl chloride → HCID 86696397, compound

Participants

Reaction Steps

To a solution of tert-butyl 4-(6-(butylamino)imidazo[1,2-b]pyridazine-3-carboxamido)benzylcarbamate (230 mg, 0.53 mmol) in methanol (15 mL) was added acetyl chloride (0.37 mL, 5.25 mmol) dropwise. The reaction mixture was stirred for overnight, concentrated and purified by Prep HPLC (neutral) to give N-(4-(aminomethyl)phenyl)-6-(butylamino)imidazo[1,2-b]pyridazine-3-carboxamide (25 mg, 20% yield). 1H NMR (400 MHz, METHANOL-d4) δ ppm 8.54 (s, 1H), 8.11 (s, 1H), 7.80 (d, J=8.38 Hz, 2H), 7.77 (d, J=9.92 Hz, 1H), 7.50 (d, J=8.38 Hz, 2H), 6.92 (d, J=9.70 Hz, 1H), 4.12 (s, 2H), 3.48 (t, J=7.17 Hz, 2H), 1.79 (quin, J=7.33 Hz, 2H), 1.55 (dq, J=15.02, 7.41 Hz, 2H), 1.02 (t, J=7.39 Hz, 3H); LRMS (ESI) m/e 339.2 [(M+H)+, calcd for C18H23N6O 339.4].

Provenance & Evidence