abstract |
THE PRESENT INVENION REFERS TO ALFAAMINOACIL CEPHALOSPORINS, WHICH HAVE THE CHEMICAL STRUCTURE CONTAINED IN THE RESPECTIVE TECHNICAL DATA SHEET. THESE COMPOUNDS ARE CEPHALOSPORIN ESTERS THAT HAVE THE OXYGEN ATOM OF A SUBSTITUTE ETHER, DIRECTLY BONDED TO CARBON 3 OF THE DIHYDROTIAZINE RING. |