Ammonia → HCID 9857046, compound

Participants

Reaction Conditions

Reaction Steps

4-Chloro-α-methyl-1-(2-methylpropyl)-1H-imidazo[4,5-c]quinoline-2-methyl benzoate (3.7 g; 0.009 mol, Example 19) was added to 15% methanolic ammonia (50 mL). The mixture was heated in a Parr bomb at 165° C. for 6 hr. The resulting reaction mixture was evaporated and the residue was slurried in aqueous sodium bicarbonate. The product was extracted into dichloromethane, and the extracts were washed with aqueous sodium bicarbonate and dried over magnesium sulfate. The organic extracts were evaporated to dryness to yield an oily solid. The solid was purified by silica gel column chromatography to yield two products, the intended product and the 4-(N-methyl) derivative. The intended product (Rf=0.36 silica gel TLC, ethyl acetate eluent) was recrystallized from ethanol to yield a solid m.p. 190-195° C. Analysis: Calculated: C, 67.6; H, 7.1; N, 19.7. Found: C, 67.6; H, 7.1; N, 19.7. The 4-(N-methyl) derivative was recrystallized from ethyl acetate to give a solid, m.p. 145-149° C. Analysis: Calculated: C, 68.4; H, 7.4; N, 18.8. Found: C, 68.3; H, 7.4; N, 18.7.

Provenance & Evidence