Trifluoroacetic acid → 2-(acetylamino)-4-[2-(4-aminophenyl)ethyl]-N-(4-nitrobenzyl)-1,3-thiazole-5-carboxamide

Participants

Reaction Steps

tert-Butyl {4-[2-(2-(acetylamino)-5-{[(4-nitrobenzyl)amino]carbonyl}-1,3-thiazol-4-yl)ethyl]phenyl}carbamate (135 mg) and TFA (2 ml) were combined at 0° C. The reaction mixture was stirred at room temperature for an hour, and concentrated in vacuo. The residue was dissolved in MeOH and CHCl3, and made basic (pH=8) by 1N—NaOH. The mixture was concentrated in vacuo. The residual solid was washed with water to give 2-(acetylamino)-4-[2-(4-aminophenyl)ethyl]-N-(4-nitrobenzyl)-1,3-thiazole-5-carboxamide (92.5 mg) as a pale yellow solid.

Provenance & Evidence