70254-43-2
4-Hydroxy-2(1H)-quinolinone
+
37818-48-7
2-phenylpropanedioyl dichloride
→
62668-76-2
4-hydroxy-3-phenyl-10H-pyrano[2,3-b]quinoline-2,5-dione
62668-78-4
4-hydroxy-3-phenyl-6H-pyrano[3,2-c]quinoline-2,5-dione