Search Results - "Nkunya, Mayunga H. H."

Toussaintines A–E: Antimicrobial indolidinoids, a cinnamoylhydrobenzofuranoid and a cinnamoylcyclohexenoid from Toussaintia orientalis leaves by Samwel, Stephen, Odalo, Josiah O., Nkunya, Mayunga H.H., Joseph, Cosam C., Koorbanally, Neil A.

“…The indolidinoids 1– 3, the cinnamoyl hydrobenzofuranoid 4 and the cyclohexenoid 5 have been isolated as antibacterial and antifungal constituents of…”
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Anti-mosquito and antimicrobial nor-halimanoids, isocoumarins and an anilinoid from Tessmannia densiflora by Kihampa, Charles, Nkunya, Mayunga H.H., Joseph, Cosam C., Magesa, Stephen M., Hassanali, Ahmed, Heydenreich, Matthias, Kleinpeter, Erich

“…The larvicidal extracts from Tessmannia densiflora Harms (Caesalpiniaceae) yielded anti-mosquito and antibacterial nor-halimanoids 1 and 2 as active…”
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Cytotoxic, anti-proliferative and antimicrobial furanoditerpenoids from Stuhlmania moavi by Odalo, Josiah O., Joseph, Cosam C., Nkunya, Mayunga H.H., Sattler, Isabel, Lange, Corina, Dahse, Hans-Martin, Möllman, Ute

“…The furanoditerpenoids voucapane ( 1), voucapane-6a,7a-diol ( 2), voucapane-18,19-diol ( 3) and 18-hydroxyvoucapan-19-al ( 4) were isolated from the cytotoxic…”
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Antifungal rosane diterpenes and other constituents of Hugonia castaneifolia by Baraza, Lilechi D., Joseph, Cosam C., Munissi, Joan J.E., Nkunya, Mayunga H.H., Arnold, Norbert, Porzel, Andrea, Wessjohann, Ludger

“…3β-Hydroxyrosa-1(10),15-dien-2-one ( 1), 18-hydroxyhugorosenone ( 2) and 18-hydroxy-3-deoxyhugorosenone ( 3), and…”
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Antifungal Enantiomeric Styrylpyrones from Sanrafaelia ruffonammari and Ophrypetalum odoratum by Malebo, Hamisi M., Kihampa, Charles, Mgina, Clarence A., Sung’hwa, Fortunatus, Waibel, Reiner, Jonker, Stephan A., Nkunya, Mayunga H. H.

“…Phytochemical investigation of Sanrafaelia ruffonammari Verd and Ophrypetalum odoratum Diels that belongs to the rare genera confined to East African coastal…”
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Diprenylated Indole Alkaloids from Fruits of Hexalobus monopetalus by Malebo, Hamisi M., Jonker, Stephan A., Waibel, Reiner, Nkunya, Mayunga H. H.

“…New hexalobine type alkaloid, 5-(2″,3″-epoxy-3″-methylbutyl)-3-(3′-hydroxy-3′-methyl-1′-acetyloxy-but-2′-yl)indole ( 1 ) alongside the known hexalobines…”
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New antimicrobial, mosquito larvicidal and other metabolites from two Artabotrys species by Nyandoro, Stephen S., Joseph, Cosam C., Nkunya, Mayunga H.H., Hosea, Kenneth M.M.

“…Azabicycloheptenoylditerpene 1-((2E,6E,10E)-3,7,11,15-tetramethylhexadeca-2,6,10,14-tetraenyl)-2-azabicyclo[2.2.1]hept-5-en-3-one (artamodamide, 1),…”
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Constituents of the Essential Oil of Suregada zanzibariensis Leaves are Repellent to the Mosquito, Anopheles gambiae s.s by Innocent, Ester, Joseph, Cosam C., Gikonyo, Nicholas K., Nkunya, Mayunga H.H., Hassanali, Ahmed

“…In traditional African communities, repellent volatiles from certain plants generated by direct burning or by thermal expulsion have played an important role…”
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Growth disruption activity of polar extracts from Kotschya uguenensis (Fabaceae) against Anopheles gambiae s.s. (Diptera: Culicidae) larvae by Innocent, Ester, Joseph, Cosam C., Gikonyo, Nicholas K., Nkunya, Mayunga H.H., Hassanali, Ahmed

“…Studies on the larvicidal properties of extracts and fractions from Kotschya uguenensis Verdc. were done by long-term exposure of Anopheles gambiae s.s…”
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Unusual metabolites from some Tanzanian indigenous plant species by Nkunya, Mayunga H. H.

“…In this paper, the chemistry of some unusual natural products that were isolated from various Tanzanian indigenous plant species during the past 20 years is…”
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Larvicidal and IGR activity of extract of Tanzanian plants against malaria vector mosquitoes by Kihampa, Charles, Joseph, Cosam C, Nkunya, Mayunga H H, Magesa, Stephen M, Hassanali, Ahmed, Heydenreich, Matthias, Kleinpeter, Erich

“…This paper reports the larvicidal activity of seventeen Tanzanian plant species against the malaria vector, Anopheles gambiae s.s. Giles larvae. Some of the…”
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Geranylbenzoquinonoids from Lettowianthus stellatus fruits by Makangara, John J., Nkunya, Mayunga H.H., Jonker, Stephan S.

“…The geranylbenzoquinonoids 7-(3,7-dimethylocta-2,6-dienyl)-5-hydroxy-3H-benzofuran-2-one (lettowienolide), dimethyl…”
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A novel antiplasmodial 3′,5′-diformylchalcone and other constituents of Friesodielsia obovata by Joseph, Cosam C., Magadula, Joseph J., Nkunya, Mayunga H. H.

“…Phytochemical investigation of the stem and root barks of Friesodielsia obovata Benth (Annonaceae) afforded new 3′,5′-diformyl-2′,4′,6′-trihydroxychalcone and…”
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Aristolactams, 1-(2-C-methyl-beta-D-ribofuranosyl)-uracil and other bioactive constituents of Toussaintia orientalis by Odalo, Josiah O, Joseph, Cosam C, Nkunya, Mayunga H H, Sattler, Isabel, Lange, Corinna, Friedrich, Gollmick, Dahse, Hans-Martin, Möllman, Ute

“…The new aristolactam alkaloid toussalactam {2-hydroxy-1,6-dimethoxy-5H-dibenzo[cdf]indol-4-one} and the known ones, namely aristolactam AII, aristolactam BII,…”
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The caulindoles: dimeric prenylindoles from Isolona cauliflora by Makangara, John J., Henry, Leonia, Jonker, Stephan A., Nkunya, Mayunga H.H.

“…Four dimeric prenylindoles occurring in diastereomeric pairs, the caulindole A–D, 5-(3-methyl-2-butenyl)-1 H-indole, and ( E)-5-(3-methylbuta-1,3-dienyl)-1…”
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A new cytotoxic and larvicidal himachalenoid, rosanoids and other constituents of Hugonia busseana by Baraza, Lilechi D., Joseph, Cosam C., Nkunya, Mayunga H. H.

“…A new cytotoxic himachalene sesquiterpenoid 4α-methoxy-5,9-oxahimachal-9-ene (hugonianene A) which exhibited moderate activity against Anopheles gambiae…”
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Antimosquito and antimicrobial clerodanoids and a chlorobenzenoid from Tessmannia species by Kihampa, Charles, Nkunya, Mayunga H H, Joseph, Cosam C, Magesa, Stephen M, Hassanali, Ahmed, Heydenreiche, Matthias, Kleinpeter, Erich

“…The clerodane diterpenoids trans-kolavenolic acid, 18-oxocleroda-3,13(E)-dien-15-oic acid, ent-(18-hydroxycarbonyl)-cleroda-3,13(E)-dien-15-oate,…”
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(±)-Schefflone: a trimeric monoterpenoid from the root bark of Uvaria scheffleri by Nkunya, Mayunga H.H., Jonker, Stephan A., de Gelder, René, Wachira, Sabina W., Kihampa, Charles

“…The trimeric monoterpene and mildly mosquito larvicidal agent, (±)-schefflone, that is an apparent derivative of the antiparasitic aromatic monoterpene…”
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C18 tetraynoic fatty acids and essential oil composition of Mkilua fragrans by Baraza, Lilechi D., Nkunya, Mayunga H. H., Jonker, Stephan A., Juma, Slim R., Waibel, Reiner

“…The fatty acids 17,18-dihydroxyoctadeca-9,11,13,15-tetraynoic acid (mkiluaynoic acid A) and 18-hydroxyoctadeca-9,11,13,15-tetraynoic acid (mkiluaynoic acid B),…”
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Antifungal Enantiomeric Styrylpyrones from Sanrafaelia ruffonammari and Ophrypetalum odoratum by Malebo, Hamisi M., Kihampa, Charles, Mgina, Clarence A., Sung’hwa, Fortunatus, Waibel, Reiner, Jonker, Stephan A., Nkunya, Mayunga H. H.

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