Hoechst Aktiengesellschaft

Goukanapalli C Reddy

Hans-Wolfram Fehlhaber

Bimal N Ganguli

Richard H Rupp

Herbert Kogler

Christopher M Franco

Triptikumar Mukhopadhyay

Erra K Vijayakumar

Sugata Chatterjee

Kirity Roy

Julia Gandhi

A new antibiotic, aranorosin, a microbiological process for the preparation thereof, and the use thereof as a pharmaceutical. Aranorosin, a compound of the formula ##STR1## can be prepared with the aid of the fungus culture Y-30499 (DSM 4151). Aranorosin has an antibiotic action as well as an action against malignant tumors.

Antibiotic, aranorosin, a microbiological process for the preparation

The present invention relates to the macrolide antibiotic swalpamycin, to a microbiological process for its preparation, to a new microorganism strain Streptomyces species, and to the use of swalpamycin as a medicinal agent for the treatment of infections caused by bacteria, mycoplasmas and Actinomycetes.

Macrolide antibiotic and its use as a medicinal agent

The present invention relates to the compound naphthomycin H of the formula I ##STR1## and to a microbiological process for its preparation. The compound is active against Gram-positive bacteria and fungi and can be used as an antibiotic.

Ansamycin antibiotic and its use as a medicament

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Bombay, India

Goukanapalli C Reddy