tert-Butyl (3-aminopropyl)carbamate → N-(3-aminopropyl)-N-(4-(benzofuran-2-yl)thiazol-2-yl)thiophene-2-carboxamide

Participants

Reaction Steps

According to the procedure in Example 19, (3-amino-propyl)carbamic acid tert-butyl ester was transformed into tert-butyl 3-(N-(4-(benzofuran-2-yl)thiazol-2-yl)thiophene-2-carboxamido)propylcarbamate, which was reacted with TFA/dichoromethane (3:2), stirred at room temperature for 30 min, concentrated in vacuo, then dissolved in MeOH and treated with 1M HCl/ether. The resulting precipitate was filtered and dried in vacuo to provide N-(3-aminopropyl)-N-(4-(benzofuran-2-yl)thiazol-2-yl)thiophene-2-carboxamide (220 mg) as a white solid.

Provenance & Evidence