Dimethylamine, hydrochloride → HCID 131730107, compound

Participants

Reaction Steps

To a solution of 5-({(2R)-2-[3-cyclopropyl-4-(cyclopropylsulfonyl)phenyl]-3-[(1R)-3-oxocyclopentyl]propanoyl}amino)pyrazine-2-carboxylic acid (102 mg), 1-hydroxybenzotriazole (44 mg), and N-[3-(dimethylamino)propyl]-N′-ethylcarbodiimide monohydrochloride (59 mg) in DMF (5 mL) were added dimethylamine monohydrochloride (22 mg) and triethylamine (0.09 mL) at room temperature. The reaction mixture was stirred at room temperature overnight, and water was then added thereto for liquid separation. The organic layer was sequentially washed with 1 M hydrochloric acid, saturated aqueous sodium bicarbonate, and saturated brine, and dried over anhydrous magnesium sulfate. The crude product obtained by concentration was purified by silica gel column chromatography (wetting with hexane:ethyl acetate=1:1, chloroform:methanol=1:0-10:1) to obtain 5-({(2R)-2-[3-cyclopropyl-4-(cyclopropylsulfonyl)phenyl]-3-[(1R)-3-oxocyclopentyl]propanoyl}amino)-N,N-dimethylpyrazine-2-carboxyamide (64 mg) as a pale yellow amorphous substance.

Provenance & Evidence