8-Hydroxy-2,3,6,7-tetramethyl-1,4a,5-triaza-phenanthren-4-one

7-amino-4-(trifluoromethyl)-1,8-naphthyridin-2-ol

4H-Pyrido[1,2-a]pyrimidin-4-one, 6-amino-2-(trifluoromethyl)-

7-Amino-2-phenyl-[1,8]naphthyridin-4-ol