Eli Lilly and Company

Marvin M Hoehn

Robert L Hamill

Karl H Michel

Gary G Marconi

David H Berg

LaVerne D Boeck

Calvin E Higgens

Kay F Koch

Stephen M Nash

Raymond C Yao

David S Fukuda

Jon S Mynderse

Ralph E Kastner

Richard M Gale

Harold R Papiska

A novel antibiotic complex, A59770, individual factors and derivatives thereof, are provided. The A59770 compounds are useful as pesticides, particularly as rodenticides. Further provided are methods for reducing a rodent population, rodenticidal compositions, and an A59770-producing Amycolatopsis orientalis culture.

A59770 antibiotics

New peptide antibiotic A54145, individual A54145 components A, A.sub.1, B, B.sub.1, C, D, E and F and their pharmaceutically acceptable salts, are useful antibacterial agents which also improve growth performance in animals, especially poultry. Biologically pure cultures of the A54145-producing Streptomyces fradiae cultures NRRL 18158, NRRL 18159 and NRRL 18160 cultures and methods of making antibiotic A54145 using those cultures are also provided.

A54145 antibiotics and process for their production

The novel glycopeptide antibiotic A-51568B is produced by submerged, aerobic fermentation of Nocardia orientalis NRRL 15232. A-51568B demonstrates antibiotic activity against gram-positive bacteria.

A-51568B antibiotic

Antibiotic A-51568 is produced by submerged, aerobic fermentation of new Nocardia orientalis NRRL 15232. The antibiotic is effective against gram-positive organisms.

Process for producing antibiotic A-51568 by fermentation and

Process for production of A-51568B antibiotic

Antibiotic A51568 is produced by submerged, aerobic fermentation of new Nocardia orientalis NRRL 15232. The antibiotic is gram-positive.

A51568 Antibiotic and process for producing thereof

Antibiotic A-33853 is produced by submerged, aerobic fermentation of a new Streptomyces sp. NRRL 12068. The antibiotic and the diacetyl and triacetyl derivatives thereof disclosed herein have shown antibacterial activity against Staphylococcus and Streptococcus species which are penicillin resistant. In addition, the antibiotic and its tetraacetyl derivative have shown antiviral and antitrichomonal activity in vitro.

Antibiotic A-33853 derivatives

Antibiotic A-32256 which is produced by submerged, aerobic fermentation of a Streptomyces sp. NRRL 12067. The antibiotic has shown antibacterial activity against Staphylococcus and Streptococcus and various anaerobic species. In addition, the antibiotic has shown antitrichomonas activity in vitro, as well as activity for improving ruminant feed efficency and as a mosquito larvacide.

A-32256 Phenazine antibiotic

Antibiotic A-32724 complex, comprising microbiologically-active, related factors A, B and C, is produced by submerged, aerobic fermentation of a strain of Chaetomella raphigera Swift NRRL 12331. The A-32724 antibiotics are closely related antibiotics. The individual A-32724 factors are separated by chromatography. In addition to their antibacterial activity, the A-32724 factors inhibit certain enzymes and exhibit antihypertensive properties.

A-32724 Antibiotics and process for production thereof

Antibiotic compounds of the formula: ##STR1## wherein R' is ##STR2## or --CH.sub.2 OH, and the non-toxic pharmaceutically acceptable acid addition salts thereof, are produced by culturing Streptomyces flocculus NRRL 11459. Techniques for isolating the compounds are also described. Cirramycin A.sub.1 and cirramycin B are coproduced.

Antibiotics A6888C and A6888X

Tunicamycin is produced by the cultivation of Streptomyces chartreusis Calhoun and Johnson, 1956, NRRL 12338. Methods of recovering tunicamycin and for separating and isolating individual factors A.sub.1, A.sub.2, B.sub.1, B.sub.2, C.sub.1, C.sub.2, D.sub.1 and D.sub.2 from tunicamycin complex are described.

Process for preparing tunicamycin

Antibiotic A-21978 complexes, in particular the A-21978C complex, comprising microbiologically active, related factors, C.sub.0, C.sub.1, C.sub.2, C.sub.3, C.sub.4, and C.sub.5. A-21978 complex and A-21978C complex are produced by submerged aerobic fermentation of Streptomyces roseosporus NRRL 11379. The individual A-29178C factors are separated and isolated by chromatography. The A-21978 and A-21978C complexes, the A-21978C factors, and pharmaceutically acceptable salts thereof are antibacterial agents and improve growth promotion in poultry.

A-21978 Antibiotics and process for their production

Method and compositions for treatment of swine dysentery with antibiotic A-32887 (K-41). Antibiotic A-32887 is produced by submerged aerobic fermentation of Streptomyces albus NRRL 11109.

Method of treating swine dysentery with antibiotic A-32887

Antibiotic A-33853 is produced by submerged, aerobic fermentation of a new Streptomyces sp. NRRL 12068. The antibiotic has shown antibacterial activity against Staphylococcus and Streptococcus species which are penicillin resistant. In addition, the antibiotic has shown antirival and antitrichomonal activity in vitro.

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Indianapolis, IN, United States of America

Marvin M Hoehn