反应详情

tert-Butyl{1-[2-(7-methoxy-2-oxoquinoxalin-1(2H)-yl)ethyl]piperidin-4-yl}carbamate (Intermediate 147, 190 mg, 0.47 mmol) was reacted with trifluoroacetic acid in dichloromethane as described for Intermediate 140 to give 110 mg of the crude product as an oil.