tert-butyl 2-(4-amino-2-propyl-2H-pyrazolo[3,4-c]quinolin-1-yl)ethylcarbamate 、
3-(叔丁氧羰基氨基)吡啶-4-基硼酸 以0.44 g of tert-butyl 2-(4-amino-2-propyl-2H-pyrazolo[3,4-c][1,7]naphthyridin-1-yl)ethylcarbamate was obtained as a yellow solid的产率得到tert-butyl 2-(4-amino-2-propyl-2H-pyrazolo[3,4-c][1,7]naphthyridin-1-yl)ethylcarbamate