Sodium Hydroxide → HCID 72448489, compound

Participants

Reaction Steps

A solution of 5-(4-amino-2-methyl-1H-imidazo[4,5-c]quinolin-1-yl)pentan-2-one, 2.20 g, 7.80 mmol) in ethanol (50 mL) was heated at reflux, and a solution of hydroxylamine hydochloride (1.08 g, 15.6 mmol) in water (10 mL) was added, followed by a solution of sodium hydroxide (0.94 g, 23.5 mmol) in water (10 mL). After 30 minutes, the reaction mixture was cooled in an ice bath to cause crystallization of the product, which was isolated by filtration and recrystallized from aqueous DMSO to provide 5-(4-amino-2-methyl-1H-imidazo[4,5-c]quinolin-1-yl)pentan-2-one oxime in about a 16 to 1 mixture of E and Z isomers as yellow crystals, mp 264-266° C.

Provenance & Evidence