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(2011/04/16)3-benzyl-5-chloro-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione
3-benzyl-6-(methylamino)pyrimidin-4(3H)-one
5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione
3-benzyl-5-(2-fluoro-4-iodophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione
3-benzyl-5-(2-fluoro-4-nitrophenylamino)-8-methylpyrido[2,3-d]pyrimidine-4,7(3H,8H)-dione