Methyl iodide → HCID 50992394, compound

Participants

Reaction Steps

Into a 50-mL round-bottom flask, was placed a solution of methyl 2-phenyl-3-(4-(phenylamino)piperidin-1-yl)quinoxaline-6-carboxylate (297.4 mg, 0.68 mmol, 1.00 equiv) in tetrahydrofuran (16 mL). Then sodium hydride (163 mg, 6.79 mmol, 10.00 equiv) and CH3I (964 mg, 6.79 mmol, 10.00 equiv) was added. The resulting solution was stirred for 2 days at room temperature. The reaction was then quenched by the addition of water. The resulting aqueous solution was extracted with 5×30 mL of dichloromethane. The organic layers were combined and concentrated under vacuum. The crude product (150 mg) was purified by Prep-HPLC with the following conditions (AGILENT Pre-HPLC (UV-Directed): Column, SunFire Prep C18, 19*150 mm 5 um; mobile phase, water with 0.05% TFA and CH3CN (25% CH3CN up to 60% in 6 min, up to 100% in 1 min); Detector, UV 254 nm 30 mg of product was obtained. This resulted in 30 mg (10%) of 3-(4-(methyl(phenyl)amino)piperidin-1-yl)-2-phenylquinoxaline-6-carboxylic acid as a yellow solid.

Provenance & Evidence