1-(4-羧基苯基)-3-甲基-5-吡唑酮

1,3,4,5-四氢-吡啶并[4,3-b]吲哚-2,8-二羧酸 2-叔丁酯

(Z)-4-(2-(1-乙氧基-1-氧代丙-2-亚基)肼基)苯甲酸

4-[2-(1-phenylethylidene)hydrazinyl]benzoic acid

4-(2-N-boc-肼基)苯甲酸