Hydrochloric Acid → 4-chloro-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)-2-{[(1S*,2S*)-2-pyrrolidin-1-ylcyclohexyl]amino}benzamide

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Reaction Steps

Hydrochloride of 1-ethyl-3-[3-(N,N-dimethylamino)propyl]carbodiimide (174 mg) and dimethylaminopyridine (21 mg) were added to a methylene chloride (5 mL) solution of 4-chloro-2-{[(1S*,2S*)-2-pyrrolidin-1-ylcyclohexyl]amino}benzoic acid (220 mg) and 7-amino-1-methyl-3,4-dihydroquinolin-2(1H)-one (100 mg). After stirring the reaction liquid overnight at room temperature, the reaction liquid was concentrated under a reduced pressure. By purifying the residue by silica gel column chromatography (hexane:ethyl acetate, 1:0 to 1:1), 4-chloro-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)-2-{[(1S*,2S*)-2-pyrrolidin-1-ylcyclohexyl]amino}benzamide was obtained as a pale yellow amorphous. By treating this with 4 M hydrogen chloride/ethyl acetate solution, 4-chloro-N-(1-methyl-2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)-2-{[(1S*,2S*)-2-pyrrolidin-1-ylcyclohexyl]amino}benzamide hydrochloride (212 mg) was obtained as an amorphous.

Provenance & Evidence