申请人:E. R. Squibb & Sons, Inc.
公开号:US05030724A1
公开(公告)日:1991-07-09
Antibacterial activity is exhibited by novel compounds having the formula ##STR1## or a pharmaceutically acceptable salt thereof. R.sub.3 and R.sub.4 are the same or different and each is hydrogen or alkyl or R.sub.3 and R.sub.4 taken together with the nitrogen atoms to which they are attached form a 1,2-diazacyclobutane, 1,2-diazacyclopentane, 1,2-diazacyclohexane, or 1,2-diazacycloheptane ring. Y.sub.1 and Y.sub.2 are either hydrogen or OR.sub.11 but are not the same. R.sub.11 is hydrogen, alkanoyl of from one to ten carbon atoms, substituted alkanoyl of from two to ten carbon atoms, phenylcarbonyl, (substituted phenyl) carbonyl, heteroarylcarbonyl, phenylalkanoyl, (substituted phenyl) alkanoyl, or heteroarylalkanoyl.
新化合物具有以下结构式##STR1##或其药学上可接受的盐,表现出抗菌活性。R.sub.3和R.sub.4相同或不同,每个都是氢或烷基,或者R.sub.3和R.sub.4与它们连接的氮原子一起形成1,2-二氮杂环丁烷、1,2-二氮杂环戊烷、1,2-二氮杂环己烷或1,2-二氮杂环庚烷环。Y.sub.1和Y.sub.2可以是氢或OR.sub.11,但不能相同。R.sub.11是氢、由一至十个碳原子组成的烷酰基、由二至十个碳原子组成的取代烷酰基、苯甲酰基、(取代苯)甲酰基、杂环芳基甲酰基、苯基烷酰基、(取代苯)烷酰基或杂环芳基烷酰基。