申请人:Otsuka Pharmaceutical Co., Ltd.
公开号:US04317820A1
公开(公告)日:1982-03-02
A .beta.-lactam series compound represented by the formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom or a lower alkyl group; R.sup.2 represents a hydrogen atom; R.sup.3 represents a halogen atom, a nitro group, an amino group, a hydroxy group, a lower alkyl group, a lower alkoxy group, a lower alkanoylamino group, a lower alkanesulfonyloxy group or a group represented by the formula ##STR2## where R.sup.5 represents a hydrogen atom, a lower alkanoyl group, or a lower alkanesulfonyl group; R.sup.4 represents a hydrogen atom or a hydroxy group; n is 0 or 1; l is 0, 1 or 2; and A represents --C(CH.sub.3).sub.2 --CH(COOH)-- or --CH.sub.2 C(CH.sub.2 R.sup.6).dbd.C(COOH)-- where R.sup.6 represents a lower alkanoyloxy group, a group represented by the formula ##STR3## where R.sup.7 and R.sup.8 each represents a lower alkyl group and when n is 0, R.sup.1 and R.sup.2 can combine to form a cyclohexane ring together with the carbon atoms to which they are attached, and pharmaceutically acceptable salts thereof as well as a method for preparing same are disclosed. These compounds have antimicrobial activity.
一种由化学式(I)表示的β-内酰胺系列化合物:##STR1##其中R^1代表氢原子或较低的烷基基团;R^2代表氢原子;R^3代表卤素原子、硝基基团、氨基基团、羟基基团、较低的烷基基团、较低的烷氧基基团、较低的烷酰胺基团、较低的烷磺酰氧基团或由化学式##STR2##表示的基团,其中R^5代表氢原子、较低的烷酰基团或较低的烷磺酰基团;R^4代表氢原子或羟基基团;n为0或1;l为0、1或2;A代表--C(CH_3)_2--CH(COOH)--或--CH_2C(CH_2R^6)=C(COOH)--,其中R^6代表较低的烷酰氧基团,由化学式##STR3##表示的基团,其中R^7和R^8各自代表较低的烷基团,当n为0时,R^1和R^2可以结合形成与它们连接的碳原子一起的环己烷环,并公开了其药学上可接受的盐以及制备同样的方法。这些化合物具有抗微生物活性。