| abstract |
THIS INVENTION IS REFERRED TO THE NEW DERIVATIVES 3 CETO 9 OXIME 11.12 CARBAZATE OR CARBAMATE OF 6 METHYLERITHROMYCIN A. THE COMPOUNDS OF THIS INVENTION ARE USEFUL AS ANTIBIOTICS IN MAMMALS, INCLUDING MAN, AS WELL AS IN FISH AND BIRDS. THE COMPOUNDS OF THE PRESENT INVENTION WITH BROAD SPECTRUM MACROLID ANTIBIOTICS THAT ARE EFFECTIVE AGAINST INFECTIONS CAUSED BY CERTAIN NEGATIVE GRAM BACTERIA, AS WELL AS PROTOZOA. THESE COMPOUNDS HAVE THE CHEMICAL STRUCTURE (I), IN WHICH R1, R2, R6 AND X ARE FUNCTIONAL GROUPS DESCRIBED IN THE FILE |