ethyl 2-acetyl-5-(dimethylamino)penta-2,4-dienoate

乙基6-氯-2-甲基-4-苯基-3-喹啉羧酸酯

4-methyl-7-hydroxy-8-nitro coumarin

1-(4-甲氧基苯基)-5-甲基-1H-吡唑

ethyl 2-methyl-4-(4-nitrophenyl)-1-phenylpyrrole-3-carboxylate