CP-82,996, a novel diglycoside polyether antibiotic related to monensin and produced byActinomadura sp. |
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Authors: | John P. Dirlam Annette M. Belton Jon Bordner Walter P. Cullen Liang H. Huang Yasuhiro Kojima Hiroshi Maeda Satoshi Nishiyama John R. Oscarson Anthony P. Ricketts Tatsuo Sakakibara Junsuke Tone Mamoru Yamada |
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Affiliation: | (1) Central Research, Pfizer Inc., 06340 Groton, CT, USA;(2) Taketoyo, Aichi, Japan |
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Abstract: | Summary A new polyether antibiotic CP-82,996 (C50H86O16) was isolated by solvent extraction from the fermentation broth ofActinomadura sp. (ATCC 63764). Following purification by silica gel column chromatography and crystallization, the structure of CP-82,996 was determined by a single crystal X-ray analysis. The structure is closely related to monensin, but is unique in that it contains two sugar groups, whereas monensin has none. The1H and13C NMR chemical shifts and assignments for CP-82, 996 were elucidated, and they were compared with those determined previously for monensin. CP-82,996 is active against certain Gram-positive bacteria, and is a very potent anticoccidial agent. It effectively controlled chicken coccidiosis caused by severalEimeria species at 5–10 ppm in feed, and is 10–20 times more potent than monensin. |
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Keywords: | Ionophore Actinomadura sp. (ATCC 53764) Anticoccidial agent |
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