Sodium Cyanide → HCID 118599079, compound

Participants

Reaction Conditions

Reaction Steps

To a vial was added 8-chloro-3,3-dimethyl-6-(pyrimidin-4-ylamino)-2H-imidazo[1,5-c]pyridine-1,5-dione (1, 1000 mg, 3.27 mmol), copper(I) cyanide (293 mg, 3.27 mmol) and sodium cyanide (160 mg, 3.27 mmol) in 1,4-dioxane (10 mL) at room temperature under argon. The reaction was purged with argon for 5-10 min, followed by addition of tricyclohexylphosphine (92 mg, 0.33 mmol) and tris(dibenzylideneacetone)dipalladium(0) (299 mg, 0.33 mmol) under argon. The vial was then sealed and heated at 150° C. for 48 h. After completion the reaction was quenched with sat solution of potassium permanganate and extracted the crude compound with 10% methanol in dichloromethane. The organic layer was concentrated to dryness and crude was purified by flash column chromatography (silica gel 100-200 mesh) using 2% methanol in dichloromethane. The desired fractions were concentrated to dryness under vacuum to obtain 3,3-dimethyl-1,5-dioxo-6-(pyrimidin-4-ylamino)-2H-imidazo[1,5-a]pyridine-8-carbonitrile (Cpd. No. 181) as off white solid. Yield: 0.2 g, 20%; MS (ESI) m/z 297.36 [M+1]+; 1H NMR (400 MHz, DMSO-d6) δ 10.20 (s, 1H), 9.69 (s, 1H), 8.90 (s, 1H), 8.85 (s, 1H), 8.44 (d, J=5.84 Hz, 1H), 7.44 (d, J=5.36 Hz, 1H), 1.82 (s, 6H).

Provenance & Evidence