申请人:E. R. Squibb & Sons, Inc.
公开号:US04237128A1
公开(公告)日:1980-12-02
Compounds of the formula ##STR1## wherein R is hydrogen, sodium, potassium, or certain ester groups; R.sub.1 is in the .alpha.-configuration and is hydrogen or methoxy; R.sub.2 and R.sub.3 are independently selected from methyl, ethyl, i-propyl, and n-propyl; R.sub.4 is hydrogen, sodium, potassium or certain ester groups, and X is hydrogen, ##STR2## R.sub.6 is hydrogen or lower alkyl; R.sub.7 is hydrogen, lower alkyl, ##STR3## or --(CH.sub.2).sub.n -N-(lower alkyl).sub.2 ; R.sub.8 is hydrogen, sodium or potassium; n is an integer from 1 to 4; are disclosed. These compounds are useful as antibacterial agents.
化合物的公式为##STR1##其中R是氢,钠,钾或某些酯基; R.sub.1处于.alpha.-构型,是氢或甲氧基; R.sub.2和R.sub.3独立选择甲基,乙基,异丙基和正丙基; R.sub.4是氢,钠,钾或某些酯基,X是氢,##STR2## R.sub.6是氢或低碳基; R.sub.7是氢,低碳基,##STR3## 或--(CH.sub.2).sub.n -N-(低碳基).sub.2; R.sub.8是氢,钠或钾; n是1到4的整数。这些化合物可用作抗菌剂。