HCID 11757602, compound → HCID 10381413, compound

Participants

Reaction Steps

A solution of 7-ethyl-8,9-dihydro-10-methyl-7-[(5 -methyl-1-trityl-1H-imidazol-4-yl)methyl]pyrido[1,2-a]-indol-6(7H)-one (0.45 g) in acetic acid (10 ml) and water (2.5 ml) was stirred at 60° C. for 2 hours. After evaporation of the solvent, the residue was diluted with ether (10 ml) and an aqueous solution of sodium hydrogencarbonate (10 ml). The resultant mixture was stirred for 30 minutes at ambient temperature. The insoluble material was collected, washed with water and ether, and dried to give crystalline 7-ethyl-8,9-dihydro-10-methyl-7-[(5-methyl-1H-imidazol-4-yl)methyl]-pyrido[1,2-a]indol-6(7H)-one (0.20 g).

Provenance & Evidence