3-氨基-1-苯基-2-吡唑啉-5-酮

乙酰氯

5-Methyl-3-(2-oxo-2-anilinoethyl)-1,2,4-oxadiazole

2-氰基乙酰苯胺

3-amino-3-hydroxyimino-N-phenylpropanamide