ethyl 2-(2-chloro-4-cyano-N-[4-[cyclobutylmethyl(propyl)amino]-6-methyl-3-nitropyridin-2-yl]anilino)acetate 在
盐酸 、
铁粉 作用下,
以
乙醇 为溶剂,
生成 3-Chloro-4-[8-(cyclobutylmethyl-propyl-amino)-6-methyl-2-oxo-2,3-dihydro-1H-pyrido[2,3-b]pyrazin-4-yl]-benzonitrile