Sodium Bicarbonate → HCID 66818134, compound

Participants

Reaction Steps

4-(4,6-Dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride 2,7-hydrate (1.06 g, 3.26 mmol) was added to a solution of 2-methoxy-isonicotinic acid (500 mg, 3.26 mmol) and 4-amino-4-cyano-piperidine-1-carboxylic acid tert-butyl ester (669 mg, 2.97 mmol) in EtOH (8.0 ml) at room temperature, and the mixture was stirred for 46.5 hours. An aqueous NaHCO3 solution was added to the reaction mixture, followed by extraction with AcOEt three times. The organic layers were washed with saturated brine, and then dried over anhydrous sodium sulfate and concentrated under reduced pressure. The resulting residue was purified by column chromatography (CH2Cl2/MeOH=99:1 to 95:5) to give 4-cyano-4-[(2-methoxy-pyridine-4-carbonyl)-amino]-piperidine-1-carboxylic acid tert-butyl ester as a colorless form (901 mg, 84%).

Provenance & Evidence