Labdane diterpenes from Haplopappus illinitus.
A chemical study of aerial parts of Haplopappus illinitus afforded five labdane diterpenoids whose structures were elucidated by high field NMR spectroscopy and 2D techniques. Four of them are dicarboxylic acids previously reported as the corresponding dimethyl ester derivatives and the fifth is a new compound.
Faini
Francesca
F
Departamento de Química, Facultad de Ciencias, Universidad de Chile, Santiago. ffaini@uchile.cl
Labbé
Cecilia
C
Torres
René
R
Delle Monache
Giuliano
G
Delle Monache
Franco
F
D002677:Chile; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D031206:Haplopappus / Q000737:chemistry*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013055:Spectrophotometry, Infrared
D004224:Diterpenes; C433017:labdane