phenyl 3-oxo-1,4-benzoxazine-4-carboxylate

N-(2H-1,4-benzoxazin-3-yl)acetohydrazide

N-(2H-1,4-benzoxazin-3-yl)propanehydrazide

N'-(2H-1,4-benzoxazin-3-yl)furan-2-carbohydrazide

N'-(2H-1,4-苯并恶嗪-3-基)-5-硝基呋喃-2-甲酰肼