sulfonylisourea 、 3-(4-Aminophenyl)-6-chloro-7-(methylamino)-2,3-dihydrobenzo[e][1,3]oxazin-4-one 、
N-[(5-氯-2-噻吩)磺酰基]氨基甲酸乙酯 以to give 1-(5-chlorothiophen-2-ylsulfonyl)-3-(4-(6-chloro-7-(methylamino)-4-oxo-2H-benzo[e][1,3]oxazin-3(4H)-yl)phenyl)urea的产率得到1-(5-chlorothiophen-2-ylsulfonyl)-3-(4-(6-chloro-7-(methylamino)-4-oxo-2H-benzo[e][1,3]oxazin-3(4H)-yl)phenyl)urea