申请人:Merck & Co., Inc.
                            
                            
                                公开号:EP0144825A1
                            
                            
                                公开(公告)日:1985-06-19
                            
                            
Compounds of the formula:
and the pharmaceutically acceptable salts thereof wherein
wherein each R is hydrogen or alkyl of 1 to 6 carbon atoms are disclosed. The compounds are useful as antibiotics.
                            式化合物
及其药学上可接受的盐类,其中
其中每个 R 均为氢或 1 至 6 个碳原子的烷基。这些化合物可用作抗生素。