title: Preparation, characterization, and antiviral activity of microbial metabolites of stemodin.
abstract: Screening studies for microbial transformation products of stemodin [2] have identified a number of microbial metabolites. Scale-up fermentation with Rhizopus arrhizus ATCC 11145 and Streptomyces sp. NRRL 5691 have resulted in the production of five metabolites that have been characterized with the use of 2D nmr and X-ray techniques. These metabolites have been identified as 18-hydroxystemodin [6], 16,18-dihydroxystemodin [7], 8 beta-hydroxystemodin [8], 8 beta, 18-dihydroxystemodin [9], and 7 beta, 8 beta-dihydroxystemodin [10]. The antiviral activity and cytotoxicity of the isolated metabolites have been evaluated.
authors.affiliation: Department of Pharmacognosy, School of Pharmacy, University of Mississippi, University 38677.
authors.forename: C D
authors.initials: CD
authors.lastname: Hufford
authors.forename: F A
authors.initials: FA
authors.lastname: Badria
authors.forename: M
authors.initials: M
authors.lastname: Abou-Karam
authors.forename: W T
authors.initials: WT
authors.lastname: Shier
authors.forename: R D
authors.initials: RD
authors.lastname: Rogers
mesh_terms: D000818:Animals; D000998:Antiviral Agents / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism / Q000494:pharmacology*; D001419:Bacteria / Q000378:metabolism; D001711:Biotransformation; D003461:Crystallography; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification / Q000378:metabolism / Q000494:pharmacology*; D005285:Fermentation; D005658:Fungi / Q000378:metabolism; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D018139:Simplexvirus / Q000187:drug effects; D014709:Vero Cells
chemical_list: D000998:Antiviral Agents; D004224:Diterpenes; C074341:stemodin