二苯胺

丙二酰氯

7,12-Dihydro-4-methoxy-7-phenyl-2H,5H-pyrano[2',3':4,5]pyrano[2,3-b]chinolin-2,5,12-trion

4-hydroxy-6-phenyl-2H-pyrano[3,2-c]quinoline-2,5(6H)-dione

7-(Diphenylamino)-4-hydroxy-2,5-dioxo-N,N-diphenyl-2H,5H-pyrano<4,3-b>pyran-8-carboxamid