1,2,5-Oxadiazole, 3-nitro-4-phenyl-, 5-oxide

dimethyl 3-phenyl-1,2-oxazole-4,5-dicarboxylate

dimethyl 2-morpholinobut-2-enedioate

(1-benzoylindol-3-yl)-phenylmethanone

4-苯基-1,3-二氢-2H-咪唑-2-酮