PRODUCTION OF A-21978C DERIVATIVES
An improved process is provided for producing A-21978C cyclic peptide derivatives having a C2-C14 alkonoyl side chain which comprises feeding a C2-C14 alkanoic acid, or an ester or salt thereof, to the A-21978C-producing culture during the production stages of the fermentation. In addition, a new pr...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | An improved process is provided for producing A-21978C cyclic peptide derivatives having a C2-C14 alkonoyl side chain which comprises feeding a C2-C14 alkanoic acid, or an ester or salt thereof, to the A-21978C-producing culture during the production stages of the fermentation. In addition, a new process is provided for producing the A-21978C antibiotics which comprises cultivating under aerobic conditions a new strain of microorganism. |
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