NOVEL 7-(SUBSTITUTED)-8-(SUBSTITUTED)-9-(SUBSTITUTED GLYCIL) AMIDO-6-DEMETHYL-6-DEOXYTETRACYCLINES, METHODS OF OBTAINING SUCH COMPOUNDS AS WELL AS THEIR ORGANIC AND INORGANIC SALTS AND METAL COMPLEX, PHARMACEUTICAL AGENT AND VETERINARY AGENT

摘要

The invention provides compounds of the formula: CHEM wherein R, R3, R4, X and W are defined in the specification. These compounds are useful as antibiotic agents.