申请人:Daiichi Pharmaceutical Co., Ltd.
公开号:US05136059A1
公开(公告)日:1992-08-04
Propoxybenzene derivatives represented by the following formula ##STR1## wherein Ra represents a nitro group, an amino group which may have a protecting group or an --NHCH.dbd.C(COO--C.sub.1-6 -Alkyl).sub.2 group, Rb represents a hydrogen atom, a protecting group for the hydroxyl group or a substituted sulfonyl group and Xa and Xb, which may be the same or different, each represents a halogen atom, and processes for preparation thereof are disclosed. These derivatives are useful in preparing antibacterial agents.
本发明公开了以下式子所代表的丙氧苯衍生物:##STR1## 其中Ra代表硝基、氨基(可能带有保护基)或--NHCH.dbd.C(COO--C.sub.1-6-Alkyl).sub.2基团,Rb代表氢原子、羟基的保护基或取代磺酰基,而Xa和Xb,它们可以相同也可以不同,分别代表卤素原子。本发明还公开了制备这些衍生物的方法。这些衍生物在制备抗菌剂方面非常有用。