Methyl 4-(chlorocarbonyl)benzoate → Methyl 4-[({2-[(tert-butoxycarbonyl)amino]-5-thien-2-ylphenyl}amino)carbonyl]benzoate

Participants

Reaction Steps

Methyl 4-(chlorocarbonyl)benzoate (0.75 g, 3.79 mmol) and anhydrous DCM (0.25 M) was treated with tert-butyl 2-amino-4-thien-2-ylphenylcarbamate (1.0 g, 3.44 mmol). The resulting solution was stirred at ambient temperature for 14 hours. The reaction mixture was quenched with a solution of aqueous NaOH (1M) and partitioned between ethyl acetate and water. The organic layer was washed with water, saturated aqueous sodium bicarbonate, brine, dried over anhydrous magnesium sulfate and then concentrated in vacuo. The residue was carried on without further purification.

Provenance & Evidence