Triterpenoids from Parthenium argentatum x P. tomentosa.
Four tetracyclic triterpenoids and lupeol were isolated from the hybrid Parthenium argentatum x P. tomentosa. The new triterpenoids were identified as 16, 24-epoxy-3 alpha-hydroxylanost-8-ene (argentatin E); 16, 24-epoxy-25-hydroxycycloart-1, 11, 22-trien-3-one (argentatin F); 16,24-dihydroxycycloart-20, 25-dien-3-one (argentatin G) and 16, 24-dihydroxycycloart-25-en-3-one (argentatin H). The chemical identities of these compounds were confirmed by the different spectrometric measurements.
Maatooq
Galal T
GT
University of Mansoura, Faculty of Pharmacy, Department of Pharmacognosy, Mansoura, Egypt 35516. galatm@mans.edu.eg
el-Gamal
Ali A H
AA
Furbacher
Todd R
TR
Cornuelle
Tracy L
TL
Hoffmann
Joseph J
JJ
D019659:Asteraceae / Q000737:chemistry*; D006824:Hybridization, Genetic; D015394:Molecular Structure; D013057:Spectrum Analysis; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*
D014315:Triterpenes