1,2-Dichloroethane → HCID 23218411, compound

Participants

Reaction Steps

To a stirring solution of 3-amino-1-(2-propyl)-5-(2,2,2-trifluoroethyl)-1,5-benzodiazepine-2,4-dione (180 mg, 0.57 mmol) in N,N-dimethylformamide (2 mL) was added EDC (131 mg, 0.69 mmol), HOBT (46 mg, 0.34 mmol) and 3,5-dichlorophenylacetic acid (140 mg, 0.69 mmol). The reaction was stirred at room temperature for 2 hours. The reaction was diluted with ethyl acetate (50 mL), then washed with 10% aqueous potassium hydrogen sulfate (25 mL) then saturated aqueous sodium hydrogen carbonate (25 mL) and finally, brine (25 mL). The organic layers were combined, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The residue was chromatographed on silica gel eluting with 25-40% ethyl acetate:hexane to give 100 mg of product which was crystallized from ethyl acetate/hexane to give colorless crystals (70 mg). m.p.=185°-186° C.

Provenance & Evidence