8-chloro-5-fluoro-1,7-naphthyridine-3-carbonitrile 、
(3R)-5-amino-3-(5-amino-2-fluorophenyl)-3,6-dimethyl-3,6-dihydro-2H-1,4-thiazine 1,1-dioxide 以57%的产率得到8-((3-((3R,6R)-5-Amino-6-fluoro-3,6-dimethyl-1,1-dioxido-3,6-dihydro-2H-1,4-thiazin-3-yl)-4-fluorophenyl)amino)-5-fluoro-1,7-naphthyridine-3-carbonitrile