Hydrochloric Acid → 4-[({[4-(Aminocarbonyl)-3-(4-nitrophenyl)isothiazol-5-yl]amino}carbonyl)amino]butanoic acid

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Reaction Steps

3-(4-Nitro-phenyl)-5-[(2-oxo-pyrrolidine-1-carbonyl)-amino]-isothiazole-4-carboxylic acid amide (12.5 g) added to 1 N sodium hydroxide (250 mL) at ambient temperature. The resulting mixture was stirred at ambient temperature for overnight (reaction mixture clear solution). Reaction mixture acidified with 2 N HCl. The solid which formed was collected by filtration and washed with water then dried in vacuo to give the title compound as off white solid (11.5 g, 88%).

Provenance & Evidence