Search Results - "Tapondjou, Leon A."

Sappanin-type homoisoflavonoids from Sansevieria trifasciata Prain by Tchegnitegni, Billy T., Teponno, Rémy B., Tanaka, Chiaki, Gabriel, Adeyemi F., Tapondjou, Léon A., Miyamoto, Tomofumi

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Rhizomes of Rumex abyssinicus Jacq.: Unveiling five new anthraquinones (Rumabynosides A-E) and a review on hepatoprotective potential of its phytochemicals by Lonkeng, Leopoldine T., Eckhardt, Paul, Tsafack, Borice.T., Forster, Robert, Ponou, Beaudelaire K., Teponno, Rémy B., Nguelefack, Télesphore B., Opatz, Till, Tapondjou, Léon A.

“…Five hitherto unreported anthraquinone glycoside derivatives, rumabynosides A–E (1–5), along with twenty previously reported compounds, were isolated from the…”
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Two new steroids from the medicinal plant Physalis peruviana L by Demgne, Léannick W., Eckhardt, Paul, Kianfé, Boris Y., Tchuenguem, Roland T., Dzoyem, Jean P., Ponou, Beaudelaire K., Teponno, Rémy B., Barboni, Luciano, Opatz, Till, Tapondjou, Léon A.

“…Two new steroid derivatives [Withaperuvin O: (20S, 22R)−5α, 6β, 14α, 17β, 20α-pentahydroxy-1-oxowithan-24-en-22,26-olide (1) and Withaperuvinoside: (24E,…”
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Constituents of Desmodium salicifolium (Poir.) DC (Fabaceae) with antifungal activity by Donkia, Aphalaine P.T., Eckhardt, Paul, Tsafack, Borice T., Tchuenguem, Roland T., Groß, Jonathan, Ponou, Beaudelaire K., Teponno, Rémy B., Dzoyem, Jean P., Opatz, Till, Barboni, Luciano, Tapondjou, Léon A.

“…Phytochemical investigation of the roots of Desmodium salicifolium led to the isolation of two new compounds (Desmoflavanone A:…”
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Roeperone A, a new tetraoxygenated xanthone and other compounds from the leaves of Hypericum roeperianum Schimp. (Hypericaceae) by Damen, François, Simo Mpetga, James D., Demgne, Olive Monique F., Çelik, İlhami, Wamba, Brice E.N, Tapondjou, Leon A., Beng, Veronique P., Levent, Serkan, Kuete, Victor, Tene, Mathieu

“…Chemical investigation of the methanol extract from the leaves of H. roeperianum led to the isolation of a new tetraoxygenated xanthone along with eleven known…”
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Flavans and other chemical constituents of Crinum biflorum (Amaryllidaceae) by Kianfé, Boris Y., Teponno, Rémy B., Kühlborn, Jonas, Tchuenguem, Roland T., Ponou, Beaudelaire K., Helaly, Soleiman E., Dzoyem, Jean P., Opatz, Till, Tapondjou, Léon A.

“…The ethyl acetate extract from the whole plant of Crinum biflorum Rottb. Showed a moderate activity against Enterococcus faecalis. Its phytochemical…”
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A New Chalcone and Antimicrobial Chemical Constituents of Dracaena stedneuri by Mouzié, Cédric M., Guefack, Michel-Gael F., Kianfé, Boris Y., Serondo, Héritier U., Ponou, Beaudelaire K., Siwe-Noundou, Xavier, Teponno, Rémy B., Krause, Rui W. M., Kuete, Victor, Tapondjou, Léon A.

“…Microbial infections are leading causes of death and morbidity all over the world due to the development of the resistance to antibiotics by certain…”
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A dihydrochalcone derivative and further steroidal saponins from Sansevieria trifasciata Prain by Tchegnitegni, Billy T., Teponno, Rémy B., Jenett-Siems, Kristina, Melzig, Matthias F., Miyamoto, Tomofumi, Tapondjou, Léon A.

“…Phytochemical investigation of the aerial parts of , one of the most common Dracaenaceae plants, has resulted in the isolation of a new dihydrochalcone…”
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Volatile oil from striped African pepper (Xylopia parviflora, Annonaceae) possesses notable chemopreventive, anti-inflammatory and antimicrobial potential by Woguem, Verlaine, Fogang, Hervet P.D., Maggi, Filippo, Tapondjou, Léon A., Womeni, Hilaire M., Quassinti, Luana, Bramucci, Massimo, Vitali, Luca A., Petrelli, Dezemona, Lupidi, Giulio, Papa, Fabrizio, Vittori, Sauro, Barboni, Luciano

“…•Fruits of Xylopia parviflora are used to make traditional Cameroonian soups.•The essential oil composition was dominated by monoterpene hydrocarbons.•The oil…”
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Steroidal saponins from the leaves of Cordyline fruticosa (L.) A. Chev. and their cytotoxic and antimicrobial activity by Fouedjou, Romuald T., Teponno, Rémy B., Quassinti, Luana, Bramucci, Massimo, Petrelli, Dezemona, Vitali, Luca A., Fiorini, Dennis, Tapondjou, Léon A., Barboni, Luciano

“…•Three new steroidal saponins were isolated from the leaves of Cordyline fruticosa.•The new compounds were tested for cytotoxic and antimicrobial activity.•Two…”
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Cytotoxic and antioxidant triterpene saponins from Butyrospermum parkii (Sapotaceae) by Tapondjou, Léon A., Nyaa, Laurentine B.T., Tane, Pierre, Ricciutelli, Massimo, Quassinti, Luana, Bramucci, Massimo, Lupidi, Giulio, Ponou, Beaudelaire K., Barboni, Luciano

“…[Display omitted] ► The root bark of Butyrospermum parkii, a plant used in the traditional medicine, was studied. ► Three new triterpenoid saponins were…”
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A new ursane-type triterpene oxoglucopyranoside from Crossopteryx febrifuga by Kayangar, Modjinan, Ngansop Nono, Raymond, Kühlborn, Jonas, Tchuenguem, Roland, Ponou, Beaudelaire K., Jenett-Siems, Kristina, Teponno, Rémy B., Dzoyem, Jean P., Opatz, Till, Melzig, Matthias F., Tapondjou, Léon A.

“…A new saponin, 3- -β- -3-oxo-glucopyranosyl-ursa-12,20(30)-diene-27,28-dioic acid ( ), was isolated from the methanol extract of stem bark of together with the…”
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Antinociceptive activities of the methanol extract of the bulbs of Dioscorea bulbifera L. var sativa in mice is dependent of NO–cGMP–ATP-sensitive-K + channel activation by Nguelefack, Télesphore B., Dutra, Rafael C., Paszcuk, Ana F., Andrade, Edinéia L., Tapondjou, Léon A., Calixto, João B.

“…The methanol extract of the bulbs of Dioscorea bulbifera var sativa showed significant antinociceptive effects in persistent pain and neuropathic pain…”
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In vitro Biological Activities of Seed Essential Oils from the Cameroonian Spices Afrostyrax lepidophyllus Mildbr. and Scorodophloeus zenkeri Harms Rich in Sulfur-Containing Compounds by Fogang, Hervet P. D., Maggi, Filippo, Tapondjou, Léon A., Womeni, Hilaire M., Papa, Fabrizio, Quassinti, Luana, Bramucci, Massimo, Vitali, Luca A., Petrelli, Dezemona, Lupidi, Giulio, Vittori, Sauro, Barboni, Luciano

“…The chemical composition of the essential oils obtained from the seeds of bush onion (Afrostyrax lepidophyllus) and tropical garlic tree (Scorodophloeus…”
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Antioxidant, antiproliferative and antimicrobial activities of the volatile oil from the wild pepper Piper capense used in Cameroon as a culinary spice by Woguem, Verlaine, Maggi, Filippo, Fogang, Hervet P D, Tapondjoua, Léon A, Womeni, Hilaire M, Luana, Quassinti, Bramuccic, Massimo, Vitali, Luca A, Petrelli, Dezemona, Lupidi, Giulio, Papa, Fabrizio, Vittori, Sauro, Barboni, Luciano

“…Wild pepper (Piper capense L.f., Piperaceae) is a spice traditionally used in western Cameroon to make soups called 'Nkui' and 'Nah poh'. In the present work,…”
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Steroidal Saponins from the Mesocarp of the Fruits of Raphia farinifera (Arecaceae) and their Cytotoxic Activity by Tapondjou, Léon A, Siems, Kristina J, Böttger, Stefan, Melzig, Matthias F

“…Eight steroidal saponins (1-8), including one previously unreported derivative (1), have been isolated from the mesocarp of Raphia farinifera fruits by…”
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Antioxidant C-glycosylflavones of Drymaria cordata (Linn.) Willd by Nono, Raymond N, Nguelefack-Mbuyo, Elvine P, Nzowa, Laurence K, Ponou, Beaudelaire K, Teponno, Rémy B, Nguelefack, Télesphore B, Barboni, Luciano, Tapondjou, Léon A, Park, Hee-Juhn

“…A new C-glycosylflavone, drymaritin E (6-C-(3-keto-β-digitoxopyranosyl)-4′-O-(β-D-glucopyranosyl)-7-methoxyl-5,4′-dihydroxylflavone) 1 was isolated from the…”
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Characterization and biological activity of essential oils from fruits of Zanthoxylum xanthoxyloides Lam. and Z. leprieurii Guill. & Perr., two culinary plants from Cameroon by Fogang, Hervet P.D, Tapondjou, Léon A, Womeni, Hilaire M, Quassinti, Luana, Bramucci, Massimo, Vitali, Luca A, Petrelli, Dezemona, Lupidi, Giulio, Maggi, Filippo, Papa, Fabrizio, Vittori, Sauro, Barboni, Luciano

“…Essential oils obtained by hydrodistillation of dried fruits of Zanthoxylum xanthoxyloides and Z. leprieurii (Rutaceae), were analysed by gas…”
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New 21-nordammarane saponins with anti-inflammatory and cytotoxic activities from Lavigeria macrocarpa Oliv by Kenmoe, Frank W.T., Sinda, Pierre V.K., Dzoyem, Jean P., Ponou, Beaudelaire K., Famuyide, Ibukun Michael, Teponno, Rémy B., McGaw, Lyndy Joy, Barboni, Luciano, Tapondjou, Léon A.

“…Chemical investigation of the ethanol extract from the stems and roots of the medicinal plant Lavigeria macrocarpa led to the isolation and structure…”
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Chevalierinoside A: A new isoflavonoid glycoside from the stem bark of Antidesma chevalieri Beille (Euphorbiaceae) by G. Djouossi, M., L. F. Tebou, P., D. Mabou, F., Ngnokam, D., A. Tapondjou, L., Harakat, D., V-Nazabadioko, L.

“…Chevalierinoside A (1), a new isoflavonoid glycoside determined as biochanin A 7-O-[α-L-rhamnopyranosyl-1 → 6-β-D-apiofuranosyl-1 → 2-β-D-glucopyranoside],…”
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