反应详情

tert-Butyl {1-[2-(7-methoxy-3-methyl-2-oxoquinoxalin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 160, 100 mg, 0.24 mmol) was reacted with trifluoroacetic acid in dichloromethane as described for Intermediate 140 to give 75 mg (99% yield) of the crude product as an oil.