2-乙酰氨基-5-氨基吡啶
Methyl 1-methyl-1H-pyrazole-5-carboxylate
2-Chloro-4-fluoro-6-(trifluoromethyl)benzoic acid
2,5-二(2,2,2-三氟乙氧基)苯甲酸甲酯