title: Isomeric triterpenoids from Peritassa campestris.
abstract: An investigation of the MeOH extract from the roots of Peritassa campestris (Hippocrateaceae) afforded two isomeric seco-A-ring quinonemethide triterpenoids, campestrine-I (1) and -II (2). This appears to be the first report of a C26,-type triterpene carbon skeleton from the Celastraceae or Hippocrateaceae families. The structures were elucidated on the basis of spectral data, particularly HMQC, HMBC and NOE experiments.
authors.affiliation: Instituto de Química, Universidade Federal de Goiás, Goiânia, Brazil. luciano@quimica.ufg.br
authors.forename: Luciano M
authors.initials: LM
authors.lastname: Lião
authors.forename: Paulo C
authors.initials: PC
authors.lastname: Vieira
authors.forename: Edson
authors.initials: E
authors.lastname: Rodrigues-Filho
authors.forename: João B
authors.initials: JB
authors.lastname: Fernandes
authors.forename: Maria F G F
authors.initials: MF
authors.lastname: Silva
mesh_terms: D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry; D027824:Rosaceae / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: D014315:Triterpenes