Structure of FR900452, a novel platelet-activating factor inhibitor from a Streptomyces

Structure of FR900452, a novel platelet-activating factor inhibitor from a Streptomyces FR-900452, a specific antagonist of platelet activating factor (PAF) produced by Streptomyces phaeofaciens. I. Taxonomy, fermentation, isolation, and physico-chemical and biological characteristics. Structure of FR900359, a cyclic depsipeptide from Ardisia crenata sims ZG-1494.ALPHA., a Novel Platelet-activating Factor Acetyltransferase Inhibitor from Penicilium rubrum, Isolation, Structure Elucidation and Biological Activity. FK409, a novel vasodilator isolated from the acid-treated fermentation broth of streptomyces griseosporeus. II. Structure of FK409 and its precursor FR-900411. FK409, a novel vasodilator isolated from the acid-treated fermentation broth of streptomyces griseosporeus. II. Structure of FK409 and its precursor FR-900411. Studies on WF-5239, a new potent platelet aggregation inhibitor. Inhibition of Plasminogen Activator Inhibitor-1 Activity by Two Diketopiperazines, XR330 and XR334 Produced by Streptomyces sp. Tetrapetalone A, a novel lipoxygenase inhibitor from Streptomyces sp. FR-900520 and FR-900523, novel immunosuppressants isolated from a Streptomyces. II. Fermentation, isolation and physico-chemical and biological characteristics.