申请人:E. R. Squibb & Sons, Inc.
公开号:US05420277A1
公开(公告)日:1995-05-30
Antibacterial activity is exhibited by novel compounds having the formula ##STR1## where R.sub.1, R.sub.2, and M are as defined herein and X is --(CH.sub.2).sub.n -- wherein n is 0, 1, 2, 3 or 4 or CR.sub.3 R.sub.4 wherein R.sub.3 and R.sub.4 are the same or different and each is hydrogen, --CH.sub.3 or --C.sub.2 H.sub.5 or R.sub.3 and R.sub.4 taken together with the carbon atom to which they are attached form a 3, 4, 5, 6 or 7-membered cycloalkyl ring. Also described are various intermediates for the preparation of compounds of formula 1.
新化合物表现出抗菌活性,其化学式为##STR1##其中R.sub.1,R.sub.2和M的定义如本文所述,X为--(CH.sub.2).sub.n--,其中n为0,1,2,3或4或CR.sub.3R.sub.4,其中R.sub.3和R.sub.4相同或不同,且每个为氢,--CH.sub.3或--C.sub.2H.sub.5,或R.sub.3和R.sub.4与它们附着的碳原子一起形成3、4、5、6或7成员环烷基环。还描述了制备化合物1的各种中间体。