Diisopropylethylamine → HCID 178509902, Verbindung

To a suspension of 3-chloro-5-cyanobenzyl 4-aminopiperidine-1-carboxylate HCl salt (Example 64, step 3) (234 mg, 0.709 mmol) in DCM (5 mL) at RT under nitrogen was added Huenig's Base (0.248 mL, 1.418 mmol). 3-(1H-1,2,3-Triazol-4-yl)propanoyl chloride (113 mg, 0.709 mmol) in DCM (2 mL) was then added and the mixture stirred for 1 hour. The reaction mixture was diluted with DCM and washed with a 10% solution of citric acid, a saturated solution of brine and then the organic portion was dried over MgSO4, filtered and concentrated under reduced pressure. Purification was carried out by chromatography on silica using 0-10% MeOH in DCM as eluent to afford the title product;