title: Secondary metabolites from the wood bark of Durio zibethinus and Durio kutejensis.
abstract: Phytochemical exploration of a wood bark extract from Durio zibethinus afforded two new triterpenoids, namely, methyl 27-O-trans-caffeoylcylicodiscate (1) and methyl 27-O-cis-caffeoylcylicodiscate (2), a new phenolic, 1,2-diarylpropane-3-ol (3), and seven known compounds, fraxidin, eucryphin, boehmenan, threo-carolignan E, (-)-(3R,4S)-4-hydroxymellein, methyl protocatechuate, and (+)-(R)-de-O-methyllasiodiplodin (4). In addition, chemical analysis of a wood bark extract from Durio kutejensis yielded the new triterpenes 3beta-O-trans-caffeoyl-2alpha-hydroxyolean-12-en-28-oic acid (5) and 3beta-O-trans-caffeoyl-2alpha-hydroxytaraxest-12-en-28-oic acid (6) together with four known compounds, maslinic acid, arjunolic acid, 2,6-dimethoxy-p-benzoquinone, and fraxidin. The structures of all compounds were determined on the basis of spectroscopic data.
authors.affiliation: School of Molecular and Microbial Sciences, The University of Queensland, Brisbane, QLD 4072, Australia.
authors.lastname: Rudiyansyah
authors.forename: Mary J
authors.initials: MJ
authors.lastname: Garson
mesh_terms: D035161:Bombacaceae / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification; D007214:Indonesia; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D014934:Wood; D009828:Oleanolic Acid / Q000031:analogs & derivatives
chemical_list: D003374:Coumarins; D014315:Triterpenes; C401933:fraxiden; C513724:methyl 27-O-caffeoylcylicodiscate; C061640:arjunolic acid; C412811:maslinic acid; D009828:Oleanolic Acid