3-甲基-2,5-恶唑烷二酮

2-[acetyl(methyl)amino]acetic acid

对硝基苯酚

(4-氯苯磺酰基)-甲基氨基]-乙酸

7-chloro-4-methyl-1,3-dihydro-1,4-benzodiazepine-2,5-dione