8-chloro-9-methoxy-4,6-dimethylbenzo[c][2,7]naphthyridin-5(6H)-one 、
tert-butyl 1-hydroxy-2,4-dimethylpentan-2-ylcarbamate 以afforded tert-butyl(1-((9-methoxy-4,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-2,4-dimethylpentan-2-yl)carbamate as white solid (15 mg, 0.029 mmol, 21% yield)的产率得到tert-butyl (1-((9-methoxy-4,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-2,4-dimethylpentan-2-yl)carbamate