Triethylamine → HCID 59376160, compound

Participants

Reaction Steps

To a 0° C. solution of the (2R,3S)-2-(4-tert-Butoxycarbonylaminophenyl)-piperidine-3-carboxylic acid ethyl ester prepared above (600 mg, 1.72 mmol) in dry CH2Cl2 (5 mL) containing Et3N (480 μL, 3.44 mmol) was added 2-methylbenzoyl chloride (266 mg, 1.72 mmol) and the mixture was stirred at room temperature for over night. The reaction mixture was then diluted with CH2Cl2 (20 mL), washed with 1 N aqueous HCl, water, and brine. The organic layer was dried (MgSO4), filtered and concentrated under reduced pressure to give (2R,3S)-2-(4-tert-Butoxycarbonylaminophenyl)-1-(2-methylbenzoyl)piperidine-3-carboxylic acid ethyl ester in quantitative yield and the crude product was used as such in the next step.

Provenance & Evidence