HCID 47174299, compound → HCID 178448624, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 5-(butylamino)-4-chloro-2-methylpyridazin-3(2H)-one from Example 4A (250 mg, 1.16 mmol) and 2-fluoro-5-(trifluoromethyl)benzoyl isothiocyanate (375 mg, 1.51 mmol) in dioxane (20 mL) was heated at 70° C. for 12 hours and at 100° C. for 6 hours. The mixture was concentrated under reduced pressure and the residue was dissolved in EtOAc, washed with saturated aqueous NaHCO3 and brine, dried with MgSO4, filtered, and concentrated under reduced pressure. The residue was purified by chromatography (CH2Cl2-Et2O 19:1)) to afford 110 mg of the title compound. MS (ESI) m/z 429 (M+H)+.

Provenance & Evidence