乙酰脲

r-4-Hydroperoxy-t-5-hydroxy-4-methylimidazolidin-2-one

N-(4-甲基-2-恶唑基)-乙酰胺

N-methyl-N-(4-methyl-1,3-oxazol-2-yl)acetamide

N,2-dimethyl-N-(4-methyl-1,3-oxazol-2-yl)propanamide