Sodium hydride → 3-(3-Bromo-6,7-dihydro-5H-[1]pyrindin-7-yl)-2-ethyl-5,7-dimethyl-3H-imidazo[4,5-b]pyridine

Participants

Reaction Conditions

Reaction Steps

To a solution of NaH, 60% in oil, (163 mg) in 3 mL of 1,4-dioxane was added 2-ethyl-5,7-dimethyl-3H-imidazo[4,5-b]pyridine (1.1 gm) at room temperature and stirred for 30 minutes. Then 3-bromo-7-chloro-6,7-dihydro-5H-[1]pyrindine (500 mg, 2.15 mM) in 2 mL of 1,4-dioxane and anhydrous NaBr (442 mg) were added to the solution and the reaction was heated to 100° C. for 24 hours. The reaction was then cooled to room temperature, concentrated to dryness, and extracted into ethyl acetate from water. The organic layers were dried over MgSO4, filtered, and evaporated to dryness. The residue was purified by chromatography on silica gel to yield 110 mg of product.

Provenance & Evidence