WS-9659 A and B, novel testosterone 5.ALPHA.-reductase inhibitors isolated from a Streptomyces. I. Taxonomy, fermentation, isolation, physico-chemical characteristics.

WS-9659 A and B, novel testosterone 5.ALPHA.-reductase inhibitors isolated from a Streptomyces. I. Taxonomy, fermentation, isolation, physico-chemical characteristics. WS009 A and B, new endothelin receptor antagonists isolated from Streptomyces sp. No. 89009. I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities. WS009 A and B, new endothelin receptor antagonists isolated from Streptomyces sp. No. 89009. II. Biological characterization and pharmacological characterization of WS009 A and B. WS9326A, a novel tachykinin antagonist isolated from Streptomyces violaceusniger No. 9326. I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities. WS-7338, new endothelin receptor antagonists isolated from Streptomyces sp. No. 7338. I. Taxonomy, fermentation, isolation, physico-chemical properties and biological activities. Louisianins A, B, C and D: Non-steroidal Growth Inhibitors of Testosterone-responsive SC 115 Cells. I. Taxonomy, Fermentation, Isolation and Biological Characteristics. WS75624 A and B, New Endothelin Converting Enzyme Inhibitors Isolated from Saccharothrix sp. No. 75624. I. Taxonomy, Fermentation, Isolation, Physico-chemical Properties and Biological Activities. Studies on new vasodilators, WS-1228 A and B. I. Discovery, taxonomy, isolation and characterization. Indole Derivatives as a New Class of Steroid 5α-Reductase Inhibitors W S75624 A and B, New Endothelin Converting Enzyme Inhibitors Isolated from Saccharothrix sp. No. 75624. II. Structure Elucidation of W S75624 A and B.