title: Two new tetracyclic triterpenes from the heartwood of Ailanthus excelsa Roxb.
abstract: Two new dammarane-type triterpenes, ailexcelone and ailexcelol, together with ocotillone, malabaricol, epoxymalabaricol, lupeol, and sitosterol-3-O-beta-D-glucoside were isolated from the heartwood of Ailanthus excelsa. The structures of the new compounds were established on the basis of 1D- and 2D-NMR data. Ocotillone, malabaricol and epoxymalabaricol were isolated for the first time from A. excelsa. All of the isolates were tested for their antifungal activity.
authors.affiliation: Natural Products Laboratory, Indian Institute of Chemical Technology, Hyderabad-500 007, India.
authors.forename: Pullela V
authors.initials: PV
authors.lastname: Srinivas
authors.forename: R Ranga
authors.initials: RR
authors.lastname: Rao
authors.forename: J Madhusudana
authors.initials: JM
authors.lastname: Rao
mesh_terms: D032268:Ailanthus / Q000737:chemistry*; D000935:Antifungal Agents / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D003904:Mitosporic Fungi / Q000187:drug effects; D015394:Molecular Structure; D011083:Polycyclic Compounds / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology; D012233:Rhizopus / Q000187:drug effects; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification / Q000494:pharmacology
chemical_list: D000935:Antifungal Agents; D011083:Polycyclic Compounds; D014315:Triterpenes