Dichloromethane → HCID 178474118, compound

Participants

Reaction Steps

18.0 mg (0.0756 mmol) of 3-(2-aminophenoxy)-3-chloro-4-pyridazinol obtained in Example 641 was mixed with dichloromethane (0.8 mL), 0.050 mL (0.36 mmol) of triethylamine, then 0.010 mL (0.14 mmol) of acetyl chloride were added to the mixture in an ice bath with stirring, and the resulting mixture was stirred at room temperature for 3 hours. The reaction mixture was poured into brine, and extracted with tetrahydrofuran. The organic layers were combined, washed with brineand dried over anhydrous magnesium sulfate. The solvent was distilled off and the residue was purified by preparative thin-layer chromatography (available from MERCK CO., 1.05715, developed by dichloromethane:methanol=10:1) to obtain 3.6 mg (0.0129 mmol, Yield: 17.1%) of N-{2-[(6-chloro-4-hydroxy-3-pyridazinyl)oxy]phenyl}acetamide (Compound No. 380).

Provenance & Evidence