(R)-tert-butyl 2-(4-(6-chloro-8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)phenyl)propylcarbamate 、
三氟乙酸 以to afford the desired product (28 mg, 52%) as a yellow solid的产率得到(R)-9-(4-(1-aminopropan-2-yl)phenyl)-6-chloro-8-methoxythieno[2,3-c]quinolin-4(5H)-one hydrochloride