title: Antibiotic indole sesquiterpene alkaloid from Greenwayodendron suaveolens with a new natural product framework.
abstract: High-throughput natural products chemistry methods have led to the isolation of three new (1-3) and two known indole sesquiterpene alkaloids (4, 5) from Greenwayodendron suaveolens. Their structures were determined using CapNMR and MS. Pentacyclindole (1) was determined to possess a new natural product framework. Pentacyclindole (1) and polyalthenol (4) showed activity against clinical isolates of Staphylococcus aureus with polyalthenol (4) demonstrating a MIC(90) of 4 microg/mL.
authors.affiliation: Lead Discovery and Rapid Structure Elucidation Group, Sequoia Sciences, Inc., 1912 Innerbelt Business Center Drive, St. Louis, Missouri 63114, USA. rwilliams@sequoiasciences.com
authors.forename: Russell B
authors.initials: RB
authors.lastname: Williams
authors.forename: Jin-Feng
authors.initials: JF
authors.lastname: Hu
authors.forename: Krista M
authors.initials: KM
authors.lastname: Olson
authors.forename: Vanessa L
authors.initials: VL
authors.lastname: Norman
authors.forename: Matt G
authors.initials: MG
authors.lastname: Goering
authors.forename: Mark
authors.initials: M
authors.lastname: O'Neil-Johnson
authors.forename: Gary R
authors.initials: GR
authors.lastname: Eldridge
authors.forename: Courtney M
authors.initials: CM
authors.lastname: Starks
mesh_terms: D029061:Annonaceae / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D026121:Indole Alkaloids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D055624:Methicillin-Resistant Staphylococcus aureus / Q000187:drug effects*; D008826:Microbial Sensitivity Tests; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology*; D013211:Staphylococcus aureus / Q000187:drug effects
chemical_list: D000900:Anti-Bacterial Agents; D026121:Indole Alkaloids; D012717:Sesquiterpenes; C550027:pentacyclindole