Search Results - "Ngoupayo, Joseph"

New secondary metabolites and volatile constituents from the leaves of Ocimum gratissimum Linn by Ali, Muhammad Shaiq, Hashmi, Almas, Joseph, Ngoupayo

“…The phytochemical investigation on the ethanolic extract of the leaves of Ocimum gratissimum (syn. O. viride) has led to the isolation of a new alkaloid,…”
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Antimicrobial and immunomodulatory properties of prenylated xanthones from twigs of Garcinia staudtii by Ngoupayo, Joseph, Tabopda, Turibio Kuiate, Ali, Muhammad Shaiq

“…Four new prenylated xanthones ( 1– 4), were isolated from the twigs of Garcinia staudtii together with five known xanthones. The antibacterial and…”
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Formulation and Evaluation of an Antifungal Ointment Containing Zingiber officinale Roscoe (Zingiberaceae) Essential Oil as Active Principle by Nkuete, Nelly Tagnin, Nnanga, Sandra Leila, Guetchueng, Stephanie Tamdem, Nnanga, Nga, Ngoupayo, Joseph

“…The increase incidence of fungal infections, the resistance of fungal strains to existing drugs and the toxicity assimilated to long term usage of antifungal…”
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Leishmanicidal and cholinesterase inhibiting activities of phenolic compounds from Allanblackia monticola and Symphonia globulifera by Lenta, Bruno Ndjakou, Vonthron-Sénécheau, Catherine, Weniger, Bernard, Devkota, Krishna Prasad, Ngoupayo, Joseph, Kaiser, Marcel, Naz, Qamar, Choudhary, Muhammad Iqbal, Tsamo, Etienne, Sewald, Norbert

“…In a preliminary antiprotozoal screening of several Clusiaceae species, the methanolic extracts of Allanblackia monticola and Symphonia globulifera showed high…”
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Bioactive aristolactams from Piper umbellatum by Tabopda, Turibio Kuiate, Ngoupayo, Joseph, Liu, Jiawei, Mitaine-Offer, Anne-Claire, Tanoli, Sheraz A. Khan, Khan, Shamsun Nahar, Ali, Muhammad Shaiq, Ngadjui, Bonaventure Tchaleu, Tsamo, Etienne, Lacaille-Dubois, Marie-Aleth, Luu, Bang

“…Four alkaloids named piperumbellactam A–D ( 1– 4), were isolated from branches of Piper umbellatum together with 12 known compounds. Compounds 1– 5 were…”
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α-Glucosidase Inhibitors Ellagic Acid Derivatives with Immunoinhibitory Properties from Terminalia superba by Tabopda, Turibio Kuiate, Ngoupayo, Joseph, Liu, Jiawei, Ali, Muhammad Shaiq, Khan, Shamsun Nahar, Ngadjui, Bonaventure Tchaleu, Luu, Bang

“…Fractionation of stem barks of Terminalia superba yielded two new ellagic acid derivatives, 3,4′-di-O-methylellagic acid 3′-O-β-D-xylopyranoside (1) and…”
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α-Glucosidase Inhibitors from Garcinia brevipedicellata (Clusiaceae) by Ngoupayo, Joseph, Tabopda, Turibio Kuiate, Ali, Muhammad Shaiq, Tsamo, Etienne

“…In our continuous search for α-glucosidase inhibitors from plants, four new depsidones named brevipsidones A—D (1—4) were isolated from stem bark of Garcinia…”
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Anti-plasmodial and antioxidant activities of constituents of the seed shells of Symphonia globulifera Linn f by Ngouela, Silvère, Lenta, Bruno Ndjakou, Noungoue, Diderot Tchamo, Ngoupayo, Joseph, Boyom, Fabrice Fekam, Tsamo, Etienne, Gut, Jiri, Rosenthal, Philip J., Connolly, Joseph D.

“…HMBC correlation of compound 1 which demonstrated an interesting anti-plasmodial activity (3.53 μM). A xanthone derivative, named gaboxanthone ( 1), has been…”
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Syzyguim guineense Extracts Show Antioxidant Activities and Beneficial Activities on Oxidative Stress Induced by Ferric Chloride in the Liver Homogenate by Pieme, Constant Anatole, Ngoupayo, Joseph, Nkoulou, Claude Herve Khou-Kouz, Moukette, Bruno Moukette, Nono, Borgia Legrand Njinkio, Moor, Vicky Jocelyne Ama, Minkande, Jacqueline Ze, Ngogang, Jeanne Yonkeu

“…The aim of this study was to determine the in vitro antioxidant activity, free radical scavenging property and the beneficial effects of extracts of various…”
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Terpenoids from Clerodendrum formicarum Gürke (Lamiaceae) of Cameroon by Ali, Muhammad Shaiq, Ahmed, Zeeshan, Ngoupayo, Joseph, Ali, Muhammad Imran

“…The ethanolic extract of the leaves of Clerodendrum formicarum, a Lameacious plant of Cameroon, afforded a new abeo-abietane diterpenoid named formidiol (1)…”
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Further Cytotoxic Sesquiterpene Lactones from Elephantopus mollis KUNTH by Tabopda, Turibio Kuiate, Ngoupayo, Joseph, Liu, Jiawei, Ali, Muhammad Shaiq, Khan, Shamsun Nahar, Ngadjui, Bonaventure Tchaleu, Luu, Bang

“…Three new sesquiterpene lactones, (4βH)-5α-hydroxy-8α-(2-methylbut-2-enoyloxy)-2-oxo-1(10),11(13)-guaiadien-12,6α-olide (1),…”
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Preussiate, a new urease inhibitory chalcone from Dioscorea preussii Pax by Ali, Muhammad Shaiq, Iqbal, Seerat, Lateef, Mehreen, Joseph, Ngoupayo

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Ifanosine: Olea europaea L. and Hyphaene thebaica L. combination, from traditional utilization to rational formulation: Preclinical and clinical efficacy on hypertensives patients by Zakraoui, Mariem, Outman, Ahlam, Kinambamba, Milène Simone, Bouhrim, Mohamed, Ndjib, Rosette Christelle, Al kamaly, Omkulthom, Alshawwa, Samar Zuhair, Seid, Abakar Bechir, Cordier, Janine, Ngoupayo, Joseph, Longo-Mbenza, Benjamin, Gressier, Bernard, Parvez, Mohammad Khalid, Pasković, Igor, Hamrouni, Lamia, Eto, Bruno

“…Olea europaea L. and Hyphaene thebaica L. are commonly employed by traditional healers in Africa for treating and preventing hypertension, either individually…”
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Gossweilone: A new podocarpane derivative from the stem bark of Drypetes gossweileri (Euphorbiaceae) by Etienne Tsamo, Diderot T. Noungoue, Joseph Ngoupayo, Silvère Ngouela, Joseph D. Connolly

“…A new podocarpane diterpenoid, named gossweilone (1), has been isolated from the stem bark of Drypetes gossweileri, along with two known friedelane…”
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Viridone, a New Butyrylcholinesterase Inhibitory Phenolic Ester from Leaves of Ocimum viride by Hashmi, Almas, Ali, Muhammad Shaiq, Latif, Mehreen, Ahmed, Zeeshan, Ngoupayo, Joseph

“…A new phenolic ester, viridone ( 1 ), has been isolated from the EtOH soluble part of Ocimum viride, along with previously reported known compounds: ursolic…”
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Antioxidant stilbenoid and flavanonol from stem of Erythrophleum suaveolens (Guill. & Perr.) by Ngoupayo, Joseph, Tabopda, Turibio Kuiate, Ali, Muhammad Shaiq, Ngadjui, Bonaventure Tchaleu, Lacaille-Dubois, Marie-Aleth

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Formiside and seco-formiside: lignin glycosides from leaves of Clerodendrum formicarum Gürke (Lamiaceae) from Cameroon by Ahmed, Zeeshan, Shaiq Ali, Muhammad, Adhikari, Achyut, Imran Ali, Muhammad, Ngoupayo, Joseph, Malik, Imran

“…The ethanol soluble part of the leaves of , a Lameacious plant of Cameroon, afforded two new lignin glycosides named formiside and -formiside. Structures of…”
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Triprenylated Flavonoids from Dorstenia psilurus and Their α-Glucosidase Inhibition Properties by Tabopda, Turibio K, Ngoupayo, Joseph, Awoussong, Patrice K, Mitaine-Offer, Anne-Claire, Ali, Muhammad S, Ngadjui, Bonaventure T, Lacaille-Dubois, Marie-Aleth

“…Six new unusual C-4′-prenylated flavonols, dorsilurins F−K (1−6), together with six known compounds were isolated from the roots of Dorstenia psilurus, and…”
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Formadienoate-A and B: two new long chained feruloyl esters from Clerodendrum formicarum (Lamiaceae) of Cameroon by Ali, Muhammad Shaiq, Ahmed, Zeeshan, Ali, Muhammad Imran, Ngoupayo, Joseph

“…The ethanol extract of the leaves of Clerodendrum formicarum Gürke, a Lameacious plant of Cameroon, afforded two new long-chained esters named formadienoate-A…”
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Antimicrobial pentacyclic triterpenoids from Terminalia superba by Tabopda, Turibio Kuiate, Ngoupayo, Joseph, Khan Tanoli, Sheraz A, Mitaine-Offer, Anne-Claire, Ngadjui, Bonaventure Tchaleu, Ali, Muhammad Shaiq, Luu, Bang, Lacaille-Dubois, Marie-Aleth

“…Antibacterial bioassay-guided fractionation of the methanol extract of the stem bark of Terminalia superba led to the isolation of four new triterpene…”
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