methyl 3-(4-methoxyanilino)but-2-enoate

methyl 3-(4-chloroanilino)but-2-enoate

3-环戊基-4,7-二氢-1,6-二甲基-4-(3-硝基苯基)吡唑并(3,4-B)吡啶-5-羧酸甲酯

3-(3-Chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid

6-phenyloxane-2,4-dione