1-氨茴酰-2-水杨酰肼

ethyl N-[(2-aminobenzoyl)amino]carbamate

3-氨基-2-甲基-4(3H)喹唑啉酮

2-methyl-3,4-dihydro-1,3,4-benzotriazepin-5-one

2-(2-aminobenzoyl)-5-methyl-4H-pyrazol-3-one