(2-氧代-2,3-二氢-4H-1,4-苯并恶嗪-4-基)乙酸

(2-oxo-2,3-dihydro-benz[1,4]oxazin-4-yl)-acetic acid-(2-hydroxy-anilide)

2-hydroxyphenyl-glycine

(2-carboxymethoxy-phenylimino)-di-acetic acid

1-(2-苯噁唑基)-乙酮