title: Aporphinoid alkaloids and other constituents from Lettowianthus stellatus.
abstract: Two new aporphinoid alkaloids, f1ttowianthine and 11-methoxylettowianthine were isolated from the root bark of Lettowianthus stellatus, together with the new sesquiterpene 11-hydroxyguaia-4,6-diene and the known compounds liriodenine, (Z)-7-octadecen-9-ynoic acid, methyl (2E,6E,10R)-10,11-epoxy-3,7,11-trimethyl-2,6-dodecadienoate, methyl (2E,6E,10R)-10,11-dihydroxy-3,7,11-trimethyl-2,6-dodecadienoate  , and 3,4,5-trimethoxyphenol. The structure elucidation was achieved by spectroscopic methods.
authors.affiliation: Department of Chemistry, University of Dar es Salaam, Tanzania. nkunya@chem.udsm.ac.tz
authors.forename: M H
authors.initials: MH
authors.lastname: Nkunya
authors.forename: S A
authors.initials: SA
authors.lastname: Jonker
authors.forename: J J
authors.initials: JJ
authors.lastname: Makangara
authors.forename: R
authors.initials: R
authors.lastname: Waibel
authors.forename: H
authors.initials: H
authors.lastname: Achenbach
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D000818:Animals; D000962:Antimalarials / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D001060:Aporphines; D002855:Chromatography, Thin Layer; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D018517:Plant Roots / Q000737:chemistry; D010963:Plasmodium falciparum / Q000187:drug effects; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014197:Trees / Q000737:chemistry*
chemical_list: C412064:11-hydroxyguaia-4,6-diene; C412065:11-methoxylettowianthine; D000470:Alkaloids; D000962:Antimalarials; D001060:Aporphines; D012717:Sesquiterpenes; C412066:lettowianthine