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.
该专利涉及一种以以下结构式表示的丙氧基苯衍生物,其中Ra代表一个硝基,一个可能带有保护基的氨基或一个--NHCH.dbd.C(COO--C.sub.1-6 -Alkyl).sub.2基团,Rb代表一个氢原子,一个羟基的保护基或一个取代磺酰基,Xa和Xb分别代表卤原子,可以相同也可以不同。揭示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。