反应详情

A mixture of tert-butyl 3-(4-(2-(4,5-dichloro-2-hydroxyphenylamino)acetyl)piperazin-1-yl)azetidine-1-carboxylate (150 mg, 0.33 mmol) in HCl-MeOH (20 mL, 57 mmol) was stirred at room temperature for 1 h. The mixture was concentrated in vacuo to afford the crude product (130 mg) which was used directly in the next step without further purification.

1. concentrationThe mixture was concentrated in vacuo