Antibiotic A/16686 factor A2, the process for the preparation thereof, and the co-produced antibiotic A/16686 factors A1 and A3.

摘要

The present invention refers to a chlorine containing antibiotic substance, named antibiotic A/16686 factor A<Sub>2</Sub>, in an essentially pure form.

The invention also relates to the process for the production of antibiotic A/16686 factors A<Sub>2</Sub> by cultivation of an Actinoplanes strain and to the co-produced antibiotic A/16686 factors A<Sub>1</Sub> and A3.

Antibiotic A/16686 factors A<Sub>1</Sub>, A<Sub>2</Sub> and A3 as well as the corresponding non-toxic physiologically acceptable acid addition salts are antimicrobial agents particularly active against gram-positive bacteria.