申请人:Takeda Chemical Industries, Ltd.
公开号:US04851422A1
公开(公告)日:1989-07-25
The compound represented by the formula: ##STR1## where R.sup.1 stands for amino or an organic residue bonded through nitrogen; R.sup.2 stands for carboxyl or a group derivable therefrom; R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently stand for hydrogen or an organic residue, including the case where R.sup.5 or R.sup.6 forms a chemical bond or a ring with R.sup.7 or R.sup.8 ; X stands for hydrogen, methoxy or formylamino; or a salt thereof, produceable by the present method, exhibits excellent antimicrobial activity, and is utilized as antimicrobial agents.
该化合物由以下结构式表示:##STR1## 其中,R1代表氨基或通过氮原子连接的有机残基;R2代表羧基或由此衍生的基团;R3、R4、R5、R6、R7和R8各自独立地代表氢或有机残基,包括R5或R6与R7或R8形成化学键或环的情况;X代表氢、甲氧基或甲酰氨基;或其盐,可通过本方法制备,表现出优异的抗菌活性,并被用作抗菌剂。