异喹啉-1,3,4-三酮

ethyl 4-(benzoyloxy)-1,3-dioxo-2-phenyl-1,2,3,4-tetrahydroisoquinoline-4-carboxylate

ethyl 1,3-dioxo-2-phenyl-1,2,3,4-tetrahydroisoquinoline-4-carboxylate