反应详情

To a solution of 3-(2-((tert-butoxycarbonyl)amino)ethyl)-5-chloropyridine 1-oxide (90 mg, crude) in DCM (3 mL) was added TFA (1.5 mL) at 0° C. The resulting reaction mixture was stirred at room temperature for 1.5 h. The reaction mixture was concentrated to afford the crude title product, which was used directly in the next step without further purification (80 mg, crude). MS (ESI) m/z 173.1 [M+H]+.

1. customThe resulting reaction mixture
2. concentrationThe reaction mixture was concentrated