3 rezultatima
Twelve euglobals from Eucalyptus globulus and their twenty-six related compounds were examined for their inhibitory effects on Epstein-Barr virus activation by a short-term in vitro assay. The results showed that most of the euglobals having monoterpene structures, and euglobal-III (8) had strong
Grandinal, a new dimeric phloroglucinol compound, was isolated from Eucalyptus grandis and characterized by spectral techniques. Tautomeric structures 1, 2, and 3 were assigned to grandinal. Biogenetically, 1 is proposed to be formed from intermediates derived from grandinol and jensenone.
Five new euglobals possessing the phloroglucinol-monoterpene structure, euglobals G8-G12, together with a known euglobal-IIc were isolated from the hexane fraction of the methanol extract of the leaves of Eucalyptus grandis. Euglobal-G8 is an adduct of formyl-isovaleroyl-phloroglucinol and