Search Results - "Sondengam, B L"

Bioactive constituents from Boswellia papyrifera by Atta-ur-Rahman, Naz, H, Fadimatou, Makhmoor, T, Yasin, A, Fatima, N, Ngounou, F.N, Kimbu, S.F, Sondengam, B.L, Choudhary, M.I

“…Phytochemical investigation of the stem bark extract of Boswellia papyrifera afforded two new stilbene glycosides,…”
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New antioxidant and antimicrobial ellagic acid derivatives from Pteleopsis hylodendron by Atta-Ur-Rahman, Ngounou, F N, Choudhary, M I, Malik, S, Makhmoor, T, Nur-E-Alam, M, Zareen, S, Lontsi, D, Ayafor, J F, Sondengam, B L

“…Bioassay-guided isolation of two new compounds, 3,4-methylenedioxy-3'-O-methyl-4'-O-glucoside ellagic acid (1) and the pteleoellagic acid derivative (2), from…”
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Two saponins from Pteleopsis hylodendron by Ngounou, F.N, Atta-ur-Rahman, Choudhary, M.Iqbal, Malik, Shahid, Zareen, Seema, Ali, Riaz, Lontsi, D, Sondengam, B.L

“…Two new saponins, 2α,3α,19α,23-tetrahydroxyolean-12-en-28- O-β- d-galactoside, and sitosterol α(1→3) diglucoside, were isolated from the stem barks of…”
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Sesquiterpene lactone and friedelane derivative from Drypetes molunduana by Wandji, J, Wansi, J.D, Fuendjiep, V, Dagne, E, Mulholland, D.A, Tillequin, F, Fomum, Z.T, Sondengam, B.L, Nkeh, B.C, Njamen, D

“…A new sesquiterpene lactone, drypemolundein A and a new friedelane derivative, drypemolundein B, along with seven known compounds have been isolated from the…”
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New isoflavones from Ceiba pentandra by Ngounou, F.N, Meli, A.L, Lontsi, D, Sondengam, B.L, Atta-Ur-Rahman, Choudhary, M.Iqbal, Malik, Shahid, Akhtar, Farzana

“…Two new isoflavones, pentandrin ( 1) and pentandrin glucoside ( 2), were isolated from the stem barks of Ceiba pentandra along with β-sitosterol and its 3-…”
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Antimicrobial diterpenoid alkaloids from Erythrophleum suaveolens (Guill. perr.) Brenan by F.N. Ngounou, R.N. Manfouo, L.A. Tapondjou, D. Lontsi, V. Kuete, V. Penlap, F.X. Etoa, M-A.L. Dubois, B.L. Sondengam

“…An investigation of the stem bark of Erythrophleum suaveolens (Guill. & Perr.) Brenan yielded the known amide norcassaide (1) and a new diterpenoid alkaloid…”
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Minor constituents of Harungana madagascariensis stem bark by Tih, A.E., Ghogomu, R.T., Sondengam, B.L., Caux, C., Bodo, B.

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Diospyrone, a new coumarinylbinaphthoquinone from Diospyros canaliculata (Ebenaceae): structure and antimicrobial activity by J.G. Tangmouo, D. Lontsi, F.N. Ngounou, V. Kuete, A.L. Meli, R.N. Manfouo, H.W. Kamdem, P. Tane, V. Penlap Beng, B.L.Sondengam, J.D. Connolly

“…A new binaphthoquinone bearing two 4-hydroxy-5-methylcoumarin-3-yl units has been isolated from the stem bark of Diospyros canaliculata De Wildeman in addition…”
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Cecropioic acid, a pentacyclic triterpene from Musanga cecropioides by Lontsi, D., Sondengam, B.L., Martin, M.T., Bodo, B.

“…A new pentacyclic triterpene methyl cecropioate ( 1) has been obtained from the methylated ethylacetate extract of Musanga cecropioides as well as five known…”
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A New Benzoylglucoside and a New Prenylated Isoflavone from Lophira lanceolata by Pegnyemb, D. E, Messanga, B. B, Ghogomu, R, Sondengam, B. L, Martin, M. T, Bodo, B

“…A new benzoylglucoside, lanceoloside A (1), and a new prenylated isoflavone, lanceolone (2), have been isolated from the air-dried leaves of Lophira…”
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Conrauinones A and B, Two New Isoflavones from Stem Bark of Millettia conraui by Fuendjiep, Victorine, Nkengfack, Augustin E, Fomum, Z. Tanee, Sondengam, Beibam L, Bodo, Bernard

“…Two new isoflavones, named conrauinones A (1) and B (2), have been isolated from the stem bark of Millettia conraui, in addition to known 5-methoxydurmillone…”
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Securidacaxanthone A, a heptaoxygenated xanthone from Securidaca longepedunculata by Meli Lannang, A., Lontsi, D., Ngounou, F.N., Sondengam, B.L., Nkengfack, A.E., van Heerden, F.R., Assob, J.C.N.

“…From the root bark of Securidaca longepedunculata, a heptaoxygenated xanthone ( 1) has been isolated as well as two known xanthones ( 2) and ( 3) and two…”
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Lanceolins A and B: Nitrile Glycoside Esters from Lophira lanceolata by Tih, A. Ewola, Tih, R. Ghogomu, Sondengam, B. L, Martin, M. T, Bodo, B

“…From the stem heart-wood of Lophira lanceolata, two new nitrile glycoside esters, lanceolins A and B, have been isolated. Both structures were established from…”
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Chemical Studies on the Cecropiaceae: A Novel A-ring Seco Triterpene from Musanga cecropioides by Lontsi, D, Sondengam, B. L, Ayafor, J. F

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Bongosin: A New Chalcone-dimer from Lophira alata by Tih, A. Ewola, Tih, R. Ghogomu, Sondengam, B. L, Martin, M. T, Bodo, B

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Bioactive Constituents from Boswellia p apyrifera by Atta-ur-Rahman, Naz, Humera, Fadimatou, Makhmoor, Talat, Yasin, Amsha, Fatima, Naheed, Ngounou, F. N, Kimbu, S. F, Sondengam, B. L, Choudhary, M. Iqbal

“…Phytochemical investigation of the stem bark extract of Boswellia papyrifera afforded two new stilbene glycosides,…”
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Calodenone, a New Isobiflavonoid from Ochna calodendron by Messanga, B. B, Tih, R. Ghogomu, Kimbu, S. F, Sondengam, B. L, Martin, M. T, Bodo, B

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Minor Biflavonoids of Lophira lanceolata by Pegnyemb, D. E, Ghogomu-Tih, R, Sondengam, B. L, Martin, M. T, Bodo, B

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Minor alkaloids from the seeds of Voacanga africana by Pegnyemb, D.E, Ghogomu, R.T, Sondengam, B.L

“…The isolation and 13C-NMR spectra of Δ 14-vincanol, O-methyl-16-epi-Δ 14-vincanol, Δ 14-vincamone from the seeds of Voacanga africana are reported…”
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Chromone glycosides from Schumanniophyton magnificum by Tane, P, Ayafor, J F, Sondengam, B L, Connolly, J D

“…Two new chromone glycosides, schumanniofiosides A and B have been isolated from the root bark of Schumanniophyton magnificum and their structures shown to be…”
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