Hydrochloric Acid → 13-cyclohexyl-6,7-dihydro-5H-pyrrolo[2',1':3,4][1,4]diazepino[1,2-a]indole-10-carboxylic acid

Participants

Reaction Conditions

Reaction Steps

To a solution of methyl 13-cyclohexyl-6,7-dihydro-5H-pyrrolo[2′,1′:3,4][1,4]diazepino[1,2-a]indole-10-carboxylate (88 mg, 0.17 mmol) in tetrahydrofuran (2 ml) and methanol (2 ml) was added 4N aqueous sodium hydroxide solution (1 ml) and the mixture was stirred at 50° C. for 2 hr. The reaction mixture was allowed to cool to room temperature, and 2N hydrochloric acid (2.5 ml) and water were added to the reaction mixture. The precipitated solid was collected by filtration, washed with water and dried in vacuo to give 13-cyclohexyl-6,7-dihydro-5H-pyrrolo[2′,1′:3,4][1,4]diazepino[1,2-a]indole-10-carboxylic acid (74 mg, yield 85%).

Provenance & Evidence