Sulfonylurea urea 、
3-(6-aminopyridin-3-yl)-6-fluoro-7-(methylamino)-2,3-dihydrobenzo[e][1,3]oxazin-4-one 、 3-Methoxy-5-methylthiophen-2-ylsulfonylcarbamate 以to yield 1-(5-(6-fluoro-7-(methylamino)-4-oxo-2H-benzo[e][1,3]oxazin-3(4H)-yl)pyridin-2-yl)-3-(5-methoxythiophen-2-ylsulfonyl)urea的产率得到1-(5-(6-fluoro-7-(methylamino)-4-oxo-2H-benzo[e][1,3]oxazin-3(4H)-yl)pyridin-2-yl)-3-(5-methoxythiophen-2-ylsulfonyl)urea