Triethylamine → HCID 53870459, compound

Participants

Reaction Steps

To a solution of 5-{3-[3-(3-chloro-phenyl)-propylamino]-propyl}-thiophene-2-carboxylic acid methyl ester (51.5 mg, 0.1463 mmol), of Preparation 8, in CH2Cl2 (10 mL) at 0° C. was added cyclopropanesulfonyl chloride (22.6 mg, 0.161 mmol) and triethylamine (0.45 mL, 0.32 mmol). The reaction was warmed to room temperature and was stirred for 48 h. The reaction was heated at reflux for 48 h and additional triethylamine (0.45 mL) and cyclopropanesulfonyl chloride (22.6 mg) were added. The reaction was heated at reflux for 7.5 h, was cooled to room temperature and was stirred for 72 h. The reaction was heated at reflux for 24 h. The organic solution was washed sequentially with 5.5% aqueous HCl, water, saturated sodium bicarbonate solution, and brine. The organic solution was dried (MgSO4), filtered, and concentrated to provide the title compound of Step A (78.1 mg). MS 456 (M+).

Provenance & Evidence