申请人:DAIICHI PHARMACEUTICAL CO., LTD.
公开号:EP0761215A1
公开(公告)日:1997-03-12
The present invention provides an antibacterial agent containing, as an active component, a ketonitrile derivative represented by the following formula (1) or a salt thereof:
(wherein R1 is a hydrogen atom or lower alkyl, each of R2, R3, R4, and R5, which are identical to or different from one another, is a hydrogen atom, a halogen atom, nitro, lower alkyl, lower alkoxyl, or substituted or unsubstituted phenoxy, X is a substituted or unsubstituted aromatic hydrocarbon group or a substituted or unsubstituted heterocyclic group, and Y is a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a carbonyl group substituted by a substituted or unsubstituted aromatic hydrocarbon group or by a substituted or unsubstituted heterocyclic group, or a N,N-di-substituted carbamoyl group). This compound possesses excellent antibacterial activity against both gram-positive and gram-negative bacteria.
本发明提供了一种抗菌剂,其活性成分含有下式(1)代表的酮腈衍生物或其盐:
(其中 R1 是氢原子或低级烷基,R2、R3、R4 和 R5(它们彼此相同或不同)各自是氢原子、卤素原子、硝基、低级烷基、低级烷氧基或取代或未取代的苯氧基,X 是取代或未取代的芳烃基团或取代或未取代的杂环基团、和 Y 是取代或未取代的芳香烃基、取代或未取代的杂环基、被取代或未取代的芳香烃基或取代或未取代的杂环基取代的羰基或 N,N-二取代氨基甲酰基)。这种化合物对革兰氏阳性菌和革兰氏阴性菌都有很好的抗菌活性。