Records of Natural Products
Yazarlar: Hippolyte K. Wabo, Théodora K. Kowa, Antoine Honoré N. Lonfouo, Alembert T. Tchinda, Pierre Tane, Haruhisa Kikuchi, Michel Frédérich Yoshiteru Oshima
Konular:-
Anahtar Kelimeler:Hypericum lanceolatum ,Guttiferae,Xanthones,Benzophenones,Terpenoids.
Özet: A benzophenone, 2,2’,5,6’-tetrahydroxybenzophenone (1), and one xanthone, 5-hydroxy-3-methoxyxanthone (2), were newly described as natural products from the leaves and the stem barks of Hypericumlanceolatum, along with the known compounds friedelin (3), betulinic acid (4), allanxanthone A (5), 1,3,6-trihydroxyxanthone (6), isogarcinol (7), sitosterol 3-O- β -D-glucopyranoside (8), 1-hydroxy-6-methoxyxanthone (9), 6,7-dihydroxy-1,3-dimethoxyxanthone (10), 3-hydroxy-5-methoxyxanthone (11), 1,7-dihydroxy-3,6-dimethoxyxanthone (12) and calophyllumin A (13). Their structures were elucidated by spectroscopic means and comparison with published data.