p. 1964 - 1968
(2007/10/02)3-phenyl-3H-chromeno[2,3-d]pyrimidine-2,5-dione
2-amino-5-oxo-5H-chromeno[2,3-b]pyridine-3-carbonitrile
2-amino-3-[(2-phenylhydrazinylidene)methyl]chromone
(Z)-3-(2'-amino-4-oxo-4H-chromen-3-yl)-2-(4''-nitrophenyl)acrylonitrile
4-{N'-[1-(2-amino-4-oxo-chromen-3-yl)meth-(E)-ylidene]hydrazino}benzoic acid