Dimethyl Sulfoxide → HCID 117643702, compound

Participants

Reaction Steps

Triethylamine (0.22 ml) and 2,6-dichloro-5-fluoronicotinonitrile (470 mg) were added to a DMSO (2.4 ml) solution containing benzyl 4-amino-3-((tert-butoxycarbonyl)amino)piperidin-1-carboxylate (470 mg) obtained in the 2nd step, followed by stirring at room temperature for 0.5 hours. Ethyl acetate and water were added to the reaction solution for extraction. The organic layers were washed with saturated saline and dried over anhydrous sodium sulfate. The solvent was distilled away under reduced pressure. The obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1 to 15:3) and a white solid of benzyl 3-((tert-butoxycarbonyl)amino)-4-((6-chloro-5-cyano-3-fluoropyridin-2-yl)amino)piperidin-1-carboxylate (500 mg) was thus obtained.

Provenance & Evidence