4-(4,5-二甲氧基-2-硝基苯基)-1,4-二氢-2,6-二甲基吡啶-3,5-二羧酸二乙酯

(4E)-3-methyl-4-[(E)-3-phenylprop-2-enylidene]-1,2-oxazol-5-one

1-(2-methoxyphenyl)-5-methyltriazole-4-carboxylic acid

6-甲基-2-氧代-1,2,3,4-四氢嘧啶-5-羧酸乙酯

二氢吡啶