72235-56-4 
 
3-alkoxy-4-(1,1-dimethyl-propylamino)-cyclobut-3-ene-1,2-dione 
 
3-(3-chloro-4-fluoro-benzylamino)-4-(1,1-dimethyl-propylamino)-cyclobut-3-ene-1,2-dione 
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72235-56-4 
 
342816-03-9 
 
2-{6-chloro-3-2,2-difluoro-2-(1-oxy-pyridin-2-yl)-ethylamino-2-oxo-2<i>H</i>-pyrazin-1-yl}-<i>N</i>-(3-chloro-4-fluoro-benzyl)-acetamide 
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[1]Patent:WO2006/128184,2006,A2.Locationinpatent:Page/Pagecolumn360-361
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