at position 4, or at both positions. The influence of the halogen atoms on the reactivity of the β-lactam ring, visible by the carbonyl frequence in their IR spectra, was studied. A selection of compounds was tested as inhibitors of the serin protease porcine pancreatic elastase. No simple correlation between IR frequence and biological activity was found. Finally, the base induced rearrangement of
亚胺-酰
氯反应的不同修饰方法用于合成3-单-和3,3-二卤代的1,4-二芳基取代的β-内酰胺。此外,这些β-内酰胺通过在位置1的芳基处或在位置4的芳基取代基处或在两个位置处的卤素取代而改性。研究了卤素原子对β-内酰胺环反应性的影响,该反应在其IR光谱中被羰基频率可见。测试了选择的化合物作为
丝氨酸蛋白酶猪胰
弹性蛋白酶的
抑制剂。没有发现红外频率与
生物活性之间的简单关联。最后,将碱基诱导的 N- 苄基β-内酰胺重排 用于合成4,5-二芳基取代的
吡咯烷酮。