Ethyl Acetate → HCID 68291139, compound

Participants

Reaction Steps

A solution of 6-bromo-4-(ethylthio)pyrrolo[1,2-b]pyridazine-3-carboxamide (200 mg, 0.666 mmol) and copper(I) cyanide (119 mg, 1.333 mmol) in NMP (3 mL) was heated to 180° C. for 1.5 hrs, and then 200° C. for 1.5 hrs under microwave oven (CEM). To the reaction mixture was added 50 mL of EtOAc. The mixture was washed with 30 mL of 10% LiCl solution, 30 mL of saturated NH4Cl solution, and 30 mL of brine and dried over Na2SO4. Filtration and concentration yielded 6-cyano-4-(ethylthio)pyrrolo[1,2-b]pyridazine-3-carboxamide (140 mg, 77% yield). MS (ES+) m/z: 247.08 (M+H); HPLC retention time: 1.902 min (analytical HPLC Method F).

Provenance & Evidence