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7 resultados
Four Hybrid Flavan-Chalcones, Caesalpinnone A Possessing a 10,11-Dioxatricyclic [5.3.3.01,6]Tridecane-Bridged System and Caesalpinflavans A-C from Caesalpinia enneaphylla.
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Caesalpinnone A (1), an unprecedented hybrid of flavan and chalcone, possessing a 10,11-dioxatricyclic [5.3.3.01,6]tridecane-bridged system, and caesalpinflavans A-C (2-4), three new hybrid flavan-chalcones, were isolated from the twigs and leaves of Caesalpinia enneaphylla. Their structures were
Hyperattenins L and M, two new polyprenylated acylphloroglucinols with adamantyl and homoadamantyl core structures from Hypericum attenuatum.
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Hyperattenins L (1) and M (2), two new benzoylated polyprenylated phloroglucinol derivatives possessing unusual adamantyl and homoadamantyl core structures, were isolated from the aerial parts of Hypericum attenuatum. Their structures were determined by extensive NMR spectroscopic methods. Compound
Two Unusual Polycyclic Polyprenylated Acylphloroglucinols, Including a Pair of Enantiomers from Garcinia multiflora.
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Two polycyclic polyprenylated acylphloroglucinols, garcimulins A and B ((±)-1 and 2), including a pair of enantiomers with the unique caged tetracyclo[5.4.1.1(1,5).0(9,13)]tridecane skeleton were isolated from Garcinia multiflora. Their structures and absolute configurations were determined by
The cytotoxicity and chemical constituents of the hexane fraction of Typhonium flagelliforme (Araceace).
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The plant, Typhonium flagelliforme (Araceae), commonly known as the "rodent tuber" in Malaysia, is often used as an essential ingredient of herbal remedies for alternative cancer therapies. The hexane extract of this plant was evaluated for cytotoxic activity against in vitro culture on P388 murine
Chemical composition and biological activity of the essential oil obtained from Bupleurum marginatum (Apiaceae).
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OBJECTIVE
Bupleurum marginatum is a herb indigenous to the southern and southwestern part of China. It is widely used in many Chinese prescriptions. We aimed to investigate the chemical composition, antioxidant, anti-inflammatory, antimicrobial and in-vitro cytotoxic activity of the hydrodistilled
New Class of Half-Sandwich Ruthenium(II) Arene Complexes Bearing the Water-Soluble CAP Ligand as an in Vitro Anticancer Agent.
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Ruthenium(II) arene complexes of 1,4,7-triaza-9-phosphatricyclo[5.3.2.1]tridecane (CAP) were obtained. Cytotoxicity studies against cancer cell lines reveal higher activity than the corresponding PTA analogues and, in comparison to the effects on noncancerous cells, the complexes are endowed with a
Hypersubones A and B, new polycyclic acylphloroglucinols with intriguing adamantane type cores from Hypericum subsessile.
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Hypersubones A and B (1, 2), two adamantane type polycyclic polyprenylated acylphloroglucinols possessing an unprecedented seco-adamantane architecture and a tetracyclo-[6.3.1.1(3,10).0(4,8)]-tridecane core combined with a peroxide ring, respectively, were isolated from Hypericum subsessile together
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