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US 3,960,667 AGranted
Antibiotic A23187 and process for preparation thereof
AssigneeEli Lilly and Company
InventorsRichard M. Gale, Calvin E. Higgens, Marvin M. Hoehn
Life of this patent
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Abstract
Antibiotic A23187 and process for production thereof by submerged aerobic culture of Streptomyces chartreusis NRRL 3882. The antibiotic demonstrates antimicrobial activity and exhibits ionophorous properties, with a specificity for divalent cations.
Claims2
The method for producing the antibiotic A-23187 of the formula ##SPC2##
- which comprises cultivating Streptomyces chartreusis NRRL 3882 in a culture medium containing assimilable sources of carbon, nitrogen and inorganic salts under submerged aerobic fermentation conditions until a substantial amount of antibiotic A-23187 is produced by said organism in said culture medium.
Dependencies are inferred from the claim text.