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2,4,5-trimethyl-1,2,3,4,5,6-hexahydrobenzo[b]pyrimido[4,5-h][1,6]naphthyridine-1,3,6-trione |
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1,3,8-trimethyl-6-[(2-nitroanilino)methylidene]-1,2,3,4,5,6,7,8-octahydropyrido[2,3-d]pyrimidine-2,4,5,7-tetraone |
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2-(3,4,5-trimethoxyphenyl)-1,2,3,4,5,6,7,8-octahydrobenzo[4,5]thieno[2,3-d]pyrimidin-4-one |
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