A-40104 Antibiotics and process for production thereof

A-40104 antibiotic complex, comprising active factors A, B, C, and D, produced by submerged aerobic fermentation of Clitopilus pseudo-pinsitus. Individual factors A, B, and C have been isolated. A-40104 factor C is the known antibiotic pleuromutilin. A-40104 factors A and B are novel antibiotics rel...

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Bibliographische Detailangaben
Hauptverfasser: MICHEL, KARL H, HIGGENS, CALVIN E
Format: Patent
Sprache:eng
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Zusammenfassung:A-40104 antibiotic complex, comprising active factors A, B, C, and D, produced by submerged aerobic fermentation of Clitopilus pseudo-pinsitus. Individual factors A, B, and C have been isolated. A-40104 factor C is the known antibiotic pleuromutilin. A-40104 factors A and B are novel antibiotics related to pleuromutilin. A-40104 factor A, the major new factor, is the D-xylose acetal derivative of pleuromutilin. A-40104 factors A and B, their 19,20-dihydro derivatives and the per(C2-C6)alkanoyl derivatives of factors A and B and of their 19,20-dihydro derivatives are active against gram-positive and gram-negative bacteria, anaerobic bacteria, and Mycoplasma.