4-氰基-2-甲基苯甲酸

methyl 2,3,3-trimethylcyclopropene-1-carboxylate

咪唑并[5,1-b]噻唑-7-羧酸

(2-氧代-1,2-二氢-4-喹啉基)乙酸

4-phenylthiophene-3-carboxylic acid