、
5,6-difluoro-N-((1S)-1-(5-fluoropyridin-2-yl)ethyl)-3-nitropyridin-2-amine 、
5-乙氧基-1H-吡唑-3-胺 在
N2-(5-ethoxy-1H-pyrazol-3-yl)-3-fluoro-N6-((1S)-1-(5-fluoropyridin-2-yl)ethyl)-5-nitropyridine-2,6-diamine 、
乙酸乙酯 、
二氯甲烷 作用下,
以to provide the title compound as a yellow solid (969 mg, 33% isolated yield)的产率得到N2-(5-ethoxy-1H-pyrazol-3-yl)-3-fluoro-N6-((1S)-1-(5-fluoropyridin-2-yl)ethyl)-5-nitropyridine-2,6-diamine