Antibiotic compositions of matter and methods of preparing...

Antibiotic copiamycin and process for the preparation thereof

Antibiotic d-13 and its production

Antibiotic derivatives

Antibiotic factor derivable from streptomyces ostreogriseus

Antibiotic fr-1923 from nocardia uniformis

Antibiotic from a streptomyces species

Antibiotic from micromonospora

Antibiotic from streptomyces achromogenes variety

Antibiotic from streptomyces bikiniensis

Antibiotic from streptomyces canarius

Antibiotic from streptomyces griseus

Antibiotic from streptomyces ostreogriseus

Antibiotic from streptomyces ramocissimus

Antibiotic ge 2270 factors a1, a2, a3 and h

Antibiotic hydrogenated tsushimycin and production thereof

Antibiotic janiemycin from streptomyces macrosporeus

Antibiotic largomycin from streptomyces pluricolorescens

Antibiotic neplanocins

Antibiotic no. 5879 (ws-4545) from streptomyces aizunenis