2-{[(Toluene-4-sulfonyl)-(triphenyl-λ5-phosphanylidene)-methyl]-azo}-benzaldehyde

3-苯基-2,4(1H,3H)-喹唑啉二酮

2-anilino-3,1-benzoxazin-4-one

1-[2-(hydrazinecarbonyl)phenyl]-3-phenylurea

tert-butyl N-[(2-aminobenzoyl)amino]carbamate