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Unusual Flavonoids, an Antifungal Heptenolide. And C-(Hydroxy)Benzyl Dihydrochalcones from Two Coastal Annonaceae Species
В наличии
Местонахождение: Алматы | Состояние экземпляра: новый |
Бумажная
версия
версия
Автор: Atieno Angeline Ochung
ISBN: 9783659749063
Год издания: 2018
Формат книги: 60×90/16 (145×215 мм)
Количество страниц: 148
Издательство: LAP LAMBERT Academic Publishing
Цена: 36982 тг
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Аннотация: This book reports on phytochemical investigations and antimicrobial assays of two plant species of the family Annonaceae, namely Uvaria species (Boza) and Monanthotaxis fornicata. Plant species from the genus Uvaria are widely used in indigenous therapies while a crude extract from M. fornicata is used as an antivenin as well as for the treatment of stomach ailments. The stem bark of the hitherto univestigated Uvaria species (Boza) yielded the C-benzyldihydrochalcones uvaretin, isouvaretin, their O-methylated derivatives 4'-O-methylisouvaretin and 4'-O-methyluvaretin, chamuvaritin, diuvaretin and angoluvarin, and benzoic acid, some of which occurred as inseparable mixtures. Establishment of the structures of the pure compounds was based on extensive analysis of spectroscopic data, viz 1H NMR, 13C NMR, MS, COSY, HMQC, and HMBC. All the compounds showed in vitro inhibitory effects whereby the activity of uvaretin against Staphylococcus aureus, Bacillus anthracis and Streptococcus faecalis were almost equal to the standard drugs (Ampicillin and Chloramphenicol) used as positive controls in these investigations.
Ключевые слова: Unusual Flavonoids, Antifungal Heptenolide, C-(Hydroxy)Benzyl Dihydrochalcones, Coastal Annonaceae Species, Chemistry