title: Alkaloids and a pimarane diterpenoid from Strychnos vanprukii.
abstract: From the stem of Strychnos vanprukii, a gluco-indole alkaloid, 3,4-dehydropalicoside, and a pimarane diterpenoid, 7 beta-hydroxypimara-8,15-dien-14-one, were isolated together with four known alkaloids: palicoside, 3,4,5,6-tetradehydropalicoside, akagerine and 17-O-methylakagerine. The structures of these compounds were elucidated based on spectroscopic evidence.
authors.affiliation: Department of Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand.
authors.forename: Piyanuch
authors.initials: P
authors.lastname: Thongphasuk
authors.forename: Rutt
authors.initials: R
authors.lastname: Suttisri
authors.forename: Rapepol
authors.initials: R
authors.lastname: Bavovada
authors.forename: Robert
authors.initials: R
authors.lastname: Verpoorte
mesh_terms: D045784:Abietanes; D004224:Diterpenes / Q000737:chemistry* / Q000302:isolation & purification*; D026121:Indole Alkaloids / Q000737:chemistry* / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization; D031451:Strychnos / Q000737:chemistry*
chemical_list: D045784:Abietanes; D004224:Diterpenes; D026121:Indole Alkaloids; C433018:pimarane