Tert-butyl 4-[(3-amino-7-bromoquinolin-4-ylamino)methyl]piperidine-1-carboxylate 、
原丙酸三乙酯 在
silica gel 、
氯仿 、
乙酸乙酯 作用下,
以to provide 12.6 g of tert-butyl 4-[(7-bromo-2-ethyl-1H-imidazo[4,5-c]quinolin-1-yl)methyl]piperidine-1-carboxylate as a white powder, mp 208–209° C.的产率得到tert-butyl 4-[(7-bromo-2-ethyl-1H-imidazo[4,5-c]quinolin-1-yl)methyl]piperidine-1-carboxylate