2-[2-(4-bromophenyl)-4-hydroxy-5-oxo-1-phenyl-2H-pyrrol-3-yl]acetic acid

3-溴-2-氧代戊二酸 二甲酯

S-2-羟基戊二酸

(2E)-2-(phenylhydrazinylidene)pentanedioic acid

2,5-dioxo-1,3,6,7-tetrahydropyrrolo[1,2-a]imidazole-7a-carboxylic acid