| abstract |
FACTORS 1, 2, 3, 4 AND 5 PURE ISOLATES OF TEICHOMYCIN USEFULLY AS ANTIBIOTIC DRUGS AND PROCESS FOR THEIR PREPARATION; THESE FACTORS ARE RECOVERED ACCORDING TO VERY EFFECTIVE CHROMATOGRAPHY METHODS FROM TEICHOMYCIN A WHICH IS A KNOWN ANTIBIOTIC SUBSTANCE; FACTORS 1, 2, 3, 4 AND 5, WHICH HAVE CHARACTERISTIC PHYSICO-CHEMICAL PROPERTIES (FIGURE), DIFFERENT IN PARTICULAR FROM TEICHOMYCIN A BY ANTIBIOTIC ACTIVITY INCREASED WITH RESPECT TO SENSITIVE MICRO-ORGANISMS. |