Ansamycin Antibiotics as Free Radical Scavengers Isolated fromStreptomycesby Using the Bactericidal Action of the Hydroxyl Radical

Ansamycin Antibiotics as Free Radical Scavengers Isolated from<i>Streptomyces</i>by Using the Bactericidal Action of the Hydroxyl Radical Ansaetherone, a New Radical Scavenger from<i>Streptomyces</i>sp. Ansaetherone, a New Radical Scavenger from<i>Streptomyces</i>sp. Phenazoviridin, a novel free radical scavenger from Streptomyces sp. Taxonomy, fermentation, isolation, structure elucidation and biological properties. Benzastatins A, B, C, and D: New Free Radical Scavengers from Streptomyces nitrosporeus 30643. I. Taxonomy, Fermentation, Isolation, Physico-chemical Properties and Biological Activities. Hydroxymycotrienins A and B, New Ansamycin Group Antibiotics. Studies on free radical scavenging substances from microorganisms. I. Carazostatin, a new free radical scavenger produced by Streptomyces chromofuscus DC 118. Structure of Benthophoenin, a New Free Radical Scavenger Produced by Streptomyces prunicolor Structures of stealthins A and B, new free radical scavengers of microbial origin Discovery of Novel Ansamycins Possessing Potent Inhibitory Activity in a Cell-based Oncostatin M Signalling Assay.