Triethylamine → HCID 18727485, compound

Participants

Reaction Steps

1-Benzyl-4-aminopiperidine (0.5 g; 2.63 mmol) is dissolved in DMF (25 mL) at ambient temperature. 5-Phenyl-2-(3-phenyl-propyl)-pentanoic acid (22) (0.78 g; 2.62 mmol), triethylamine (0.46 mL; 3.28 mmol), 1-hydroxybenzotriazole (0.444 g; 3.28 mmol), and N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (0.554 g; 2.89 mmol) are added sequentially. The mixture is stirred for 18 hours at ambient temperature then poured onto ethyl acetate (250 mL) and extracted successively with water (50 mL), saturated aqueous sodium bicarbonate (50 mL), and brine (50 mL), then dried over MgSO4, filtered, and concentrated in vacuo. The residue is purified via silica gel chromatography with gradient elution (10%→67% ethyl acetate in hexanes) affording the desired product (1.07 g) as a white solid. ESMS: MH+ 469.4 (base).

Provenance & Evidence