申请人:TOKUYAMA CORPORATION
公开号:EP0863132A1
公开(公告)日:1998-09-09
The present invention is directed to a ketonitrile derivative represented by the following formula (1):
(wherein R1 is a hydrogen atom or a lower alkyl group; each of R2, R3, R4, and R5, which may be identical to or different from each other, is a hydrogen atom, a halogen atom, a nitro group, a lower alkyl group, a lower alkoxyl group, or a substituted or unsubstituted phenoxy group; X is a substituted or unsubstituted aromatic hydrocarbon group or a substituted or unsubstituted heterocyclic group; Y is a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted heterocyclic group, a carbonyl group that has been substituted by a substituted or unsubstituted aromatic hydrocarbon group, a carbonyl group that has been substituted by a substituted or unsubstituted heterocyclic group, an N,N-di-substituted carbamoyl group, or an alkyl group that has been substituted by a heterocyclic group) or a salt thereof, and to an antibacterial agent as well as to a drug containing, as the effective ingredient, the ketonitrile derivative or the salt. This compound exhibits excellent antibacterial activity against gram-positive bacteria and gram-negative bacteria.
本发明涉及由下式(1)代表的酮腈衍生物:
(其中 R1 是氢原子或低级烷基;R2、R3、R4 和 R5(它们可以彼此相同或不同)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;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取代的羰基、被取代或未取代的杂环基取代的羰基、N,N-二取代氨基甲酰基或被杂环基取代的烷基)或其盐,以及抗菌剂和含有酮腈衍生物或其盐作为有效成分的药物。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。