2-Methoxyaniline → HCID 66642846, compound

Participants

Reaction Steps

To a mixture of 4-[(5-carbamoyl-3-ethyl-6-{[4-(4-methylpiperazin-1-yl)-3-(trifluoromethyl)phenyl]amino}pyrazin-2-yl)amino]cyclohexanecarboxylic acid (Example 436) (62 mg), o-anisidine (42 mg) and DMF (2 mL), 1-hydroxy-1H-benzotriazole monohydrate (46 mg) and 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride (65 mg) were added and stirred at room temperature for 7 hours. The reaction liquid was poured into saturated aqueous sodium hydrogen carbonate and extracted with ethyl acetate. The organic layer was washed with water and saturated aqueous sodium chloride sequentially and then dried over anhydrous sodium sulfate, and the solvent was distilled off under reduced pressure. The residue was purified by silica gel column chromatography (eluent; chloroform:methanol) to give 6-ethyl-5-({4-[(2-methoxy-phenyl)carbamoyl]cyclohexyl}amino)-3-{[4-(4-methylpiperazin-1-yl)-3-(trifluoromethyl)phenyl]amino}pyrazine-2-carboxamide (33 mg) as a yellow powder.

Provenance & Evidence