title: Cenocladamide, a dihydropyridone alkaloid from Piper cenocladum.
abstract: A dihydropyridone alkaloid, cenocladamide, and a derivative of piplartine, 4'-desmethylpiplartine were isolated along with piplartine from the leaves of Piper cenocladum. The structures of the new compounds were determined by spectroscopic methods and by comparison to piplartine. Concentrations of these amides in plants with and without ant mutualists, are compared.
authors.affiliation: Department of Physical and Environmental Sciences, Western Colorado Center for Tropical Research, Mesa State College, Grand Junction 81502-2647, USA.
authors.forename: C D
authors.initials: CD
authors.lastname: Dodson
authors.forename: L A
authors.initials: LA
authors.lastname: Dyer
authors.forename: J
authors.initials: J
authors.lastname: Searcy
authors.forename: Z
authors.initials: Z
authors.lastname: Wrigh
authors.forename: D K
authors.initials: DK
authors.lastname: Letourneau
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D009682:Magnetic Resonance Spectroscopy; D019684:Magnoliopsida / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry / Q000378:metabolism; D011728:Pyridones / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D011728:Pyridones; C404964:cenocladamide