2-(hydroxycarbamoyl)benzoic acid

(2-propionyl-phenyl)-glyoxylic acid

3,4-二氢-2,2-二甲基-2H-萘并[1,2-B]吡喃-5,6-二酮

N,N'-(3,4-diselena-hexanediyl)-bis-phthalamic acid

N-(3-amino-4-methyl-phenyl)-phthalimide