Sodium Hydroxide → HCID 178441490, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-butyl-3-[4-(3,4-dichloro-2-cyano-1-pyrrolyl)benzyl]-7-methyl-3H-imidazo[4,5-b]pyridine (490 mg) and trimethyltin azide (690 mg) in xylene (5 ml) was stirred at 120° C. for 22 hours. After cooled to ambient temperature, the mixture was treated with aqueous 1N sodium hydroxide (10 ml) for 4 hours. The suspension was filtered. The filtrate was washed with diisopropyl ether, adjusted to pH 4 with aqueous 1N-hydrochloric acid, and concentrated in vacuo. The residue was purified by column chromatography on silica gel (elution by methanol/dichloromethane=1/8) to give 2-butyl-3-[4-[3,4-dichloro-2-(1H-tetrazol-5-yl)-1-pyrrolyl]benzyl]-7-methyl-3H-imidazo[4,5-b]pyridine (516 mg) as an amorphous solid.

Provenance & Evidence