Journal
PLANTA MEDICA
Volume 73, Issue 1, Pages 77-83Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-2006-951766
Keywords
Perovskia abrotanoides; Labiatae; tetracyclic diterpenes; NMR spectral assignment
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The phytochemical investigation of the n-hexane, the EtOAc, and the n-BuOH soluble fractions of the methanolic extract of the arial parts of Perovskia abrotanoides Karelin furnished ten compounds including the two new tetracyclic diterpenes abrotandiol (7) and abrotanone (8) besides the known cirsimaritin (9), hespiriclin (10), rosmarinic acid (11), stigmast-5-en-3 beta-of (12), stigmast-5,22-dien-3 beta-ol (13), stigmast-5-en-3 beta,7 alpha-diol (14), ursolic acid (15) and betulinic acid (16). Compounds 7 and 8 both show a 6,5,6,6 ring skeleton with a trans-1,1 -dimethylcyclohexa- no[ e,b Itetrahydrofu ran element perpendicular to a benzodihydropyran system. The complete structure elucidation of these compounds has been achieved with NMR techniques.
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