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Ceramides from the fungus Phellinus pini
Two new ceramides were identified among the chemical constituents of the fungus Phellinus pini, and the lignan (+)-pinoresinol and the steroids episterol and ergosterol peroxide have been isolated from the same source. Expand
A pterocarpan from Ulex parviflorus
Abstract A new pterocarpan has been isolated from Ulex parviflorus . The structure of this compound, (−)-2,3,4-trimethoxy-8,9-methylenedioxypterocarpan, was established by spectroscopic means. InExpand
Thymus mastichina: Chemical Constituents and their Anti-Cancer Activity
The presence of these constituents identified by colon cancer cytotoxicity-guided activity indicates that extracts of T. mastichna L. may have a protective effect against colon cancers. Expand
Flavonoids from Ulex airensis and Ulex europaeus ssp. europaeus.
From the dichloromethane extract of Ulex airensis three new isoflavonoids, ulexin C (1), ulexin D (2), and 7-O-methylisolupalbigenin (3), were isolated and characterized by spectroscopic methods.Expand
A New Prenylisoflavone from Ulex jussiaei
A new naturally occurring isoflavone, derrone, was isolated from Ulex jussiaei (Leguminosae) and as expected from structural features it proved to have no activity. Expand
Flavonoids from Ulex Species
The antifungal activity of the isolated compounds was tested by the bioautographic method against Cladosporium cucumerinum and the most active compounds were the pterocarpans, the chalcone and the isoflavones with non-hydroxylated open chain prenyl substituents. Expand
Chemotaxonomy of Portuguese Ulex: quinolizidine alkaloids as taxonomical markers.
Six species of Portuguese Ulex L. in a total of nineteen populations were studied by GC-EIMS as to their content in quinolizidine alkaloids, which allowed the definition of five chemotypes and the recognition of hybrids. Expand
New quinolizidine alkaloids from Ulex jussiaei.
From an acidic extract of Ulex jussiaei four new quinolizidine alkaloids, jussiaeiines A (1), B (2), C (3), and D (4), were isolated and characterized by spectroscopic methods together withExpand
The Role of Spongia sp. in the Discovery of Marine Lead Compounds
The present review covers the literature from 1971 to 2015 and includes studies on the intraspecific diversity of a Mediterranean species, compounds isolated from associated sponge and nudibranch and compounds isolate from S. zimocca and the red seaweed Laurentia microcladia. Expand
Transformation of montanin A into isocrotocaudin. A revision of the structures of crotocaudin and isocrotocaudin
Abstract Starting from montanin A (3) compound 11 was obtained by opening of the C-20,C-12 γ-lactone (6), oxidation of the C-12 hydroxyl group (9), relactonization to the β,γ-unsaturated γ-lactoneExpand