Hydrochloric Acid → HCID 10334592, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 8,9-dihydro-10-methyl-7-(dimethylaminomethyl)pyrido[1,2-a]indol-6(7H)-one (0.65 g), 2-methylimidazole (0.76 g), 2N hydrochloric acid (1.27 ml), and isopropyl alcohol (4 ml) was heated at 100° C. for 3 hours and 15 minutes. After evaporation of the solvent, the residue obtained was dissolved in methylene chloride. The methylene chloride solution was washed with water and brine, dried over anhydrous magnesium sulfate, and evaporated in vacuo. Purification with neutral alumina column chromatography (0.5% methanol-methylene chloride), followed by recrystallization with ethyl acetate-hexane, gave 8,9-dihydro-10-methyl-7-[(2-methyl-1H-imidazol-1-yl)methyl]pyrido[1,2-a]indol-6(7H)-one (0.40 g).

Provenance & Evidence