tert-butyl 2-chloro-4-(8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenethylcarbamate 、
N-氯代丁二酰亚胺 以to afford the desired product (70 mg, 52%) as a yellow solid的产率得到tert-butyl 2-chloro-4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenethylcarbamate