Trifluoroacetic acid → HCID 18783933, compound

Participants

Reaction Steps

0.10 g (0.267 mmol) of 1-[4-(tert-butoxycarbonylamino)butyl]-4-chloro-1H-imidazo-[4,5-c]quinoline was dissolved in 6 ml of methylene chloride. 0.21 ml (2.67 mmol) of trifluoroacetic acid was added thereto and the mixture was concentrated under reduced pressure. 2 ml of a 1N sodium hydroxide aqueous solution and brine were added to the residue and the mixture was extracted five times with chloroform. The extract was dried (Na2SO4) and concentrated under reduced pressure. The residue was triturated with diethyl ether (containing a small amount of methylene chloride) and the precipitate thus formed was collected by filtration to obtain 45 mg (0.164 mmol) of 1-(4-aminobutyl)-4-chloro-1H-imidazo[4,5-c]quinoline (shown below) as pale orange powder. ##STR44## Its spectroscopic data are as follows: IR (KBr) cm-1 : 3400, 2950, 1670, 1520, 1360.

Provenance & Evidence