2,5-二甲基恶唑

2-acetyl-3-methyl-2H-azirine

2-甲基-6-苯基-4(1h)-吡啶酮

trimethyl-[(3-methyl-1,2-oxazol-5-yl)methyl]silane

dimethyl 2-hydroxy-4,6-dimethylbenzene-1,3-dicarboxylate