申请人:Daiichi Pharmaceutical Co., Ltd.
公开号:US05654318A1
公开(公告)日:1997-08-05
A compound represented by formula (I) or a salt thereof: ##STR1## wherein X.sup.1 and X.sup.2 each represent a halogen atom; R.sup.1 represents a hydrogen atom or a substituent; R.sup.2 represents a substituted or unsubstituted bicyclic heterocyclic substituent of the following formula; ##STR2## wherein R.sup.3, R.sup.4, Y, Z, m, n, p, q and r are as defined herein; A represents a nitrogen atom or a substituted carbon atom; and R represents a hydrogen atom or a substituent. The compound exhibits potent antimicrobial activity and also high safety due to reduced lipophilicity.
化合物的化学式(I)或其盐:##STR1## 其中X.sup.1和X.sup.2分别代表卤素原子;R.sup.1代表氢原子或取代基;R.sup.2代表以下化学式的取代或未取代的双环杂环取代基;##STR2## 其中R.sup.3、R.sup.4、Y、Z、m、n、p、q和r如本文所定义;A代表氮原子或取代的碳原子;R代表氢原子或取代基。该化合物表现出强大的抗微生物活性,同时由于脂溶性降低而具有较高的安全性。