Two new special flavones fromUvaria accuminata

Two new special flavones from<i>Uvaria accuminata</i> Oxygenated pyrenes, their potential biosynthetic precursor and benzylated dihydroflavones from two African Uvaria species A Novel Phenanthrenolide and C-Benzyl Dihydrochalcones from Uvaria Puguensis Three flavonoids from the stem bark of the antimalarial Uvaria dependens Chamuvarinin, an Acetogenin Bearing a Tetrahydropyran Ring from the Roots of <i>Uvaria chamae</i> Tonkinecin, a Novel Bioactive Annonaceous Acetogenin from <i>Uvaria tonkinesis</i> Calamistrins A and B, Two New Cytotoxic Monotetrahydrofuran Annonaceous Acetogenins from <i>Uvaria calamistrata</i> New Compounds with DNA Strand-Scission Activity from the Combined Leaf and Stem of<i>Uvaria hamiltonii</i> Acetylated Flavanone Glycosides from the Rhizomes of <i>Cyclosorus </i><i>acuminatus</i> Aromatic Constituents of Uvaria grandiflora