Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Bruno N. Lenta"'
Autor:
Jean J. K. Bankeu, Hira Sattar, Yannick S. F. Fongang, Syeda W. Muhammadi, Conrad V. Simoben, Fidele Ntie-Kang, Guy R. T. Feuya, Marthe A. T. Tchuenmogne, Mehreen Lateef, Bruno N. Lenta, Muhammad S. Ali, Augustin S. Ngouela
Publikováno v:
Natural Products and Bioprospecting, Vol 9, Iss 1, Pp 49-59 (2018)
Abstract Urease enzyme (UE) has been reported to be a potent virulence factor for Helicobacter pylori (HP) bacteria indicated to be responsible for various gastrointestinal diseases. Therefore, the spread of HP, currently regarded by the World Health
Externí odkaz:
https://doaj.org/article/3ff5b0e04f5143d8b6a3cd3f778d002b
Autor:
Romeo D. Tadjouate Nago, Paul Nayim, Armelle T. Mbaveng, James D. Simo Mpetga, Gabin T. Mbahbou Bitchagno, Badawe Garandi, Pierre Tane, Bruno N. Lenta, Norbert Sewald, Mathieu Tene, Victor Kuete, Augustin Silvere Ngouela
Publikováno v:
Molecules, Vol 26, Iss 16, p 4717 (2021)
The local botanical Imperata cylindrica in Cameroon was investigated for its antibacterial potency. The methanol extract afforded a total of seven compounds, including five hitherto unreported compounds comprising three flavonoids (1–3) and two C-1
Externí odkaz:
https://doaj.org/article/65cbf2eed26d491594f4cf1e44d0e958
Autor:
Christine C. Waleguele, Brice M. Mba’ning, Angelbert F. Awantu, Jean J. K. Bankeu, Yannick S. F. Fongang, Augustin S. Ngouela, Etienne Tsamo, Norbert Sewald, Bruno N. Lenta, Rui W. M. Krause
Publikováno v:
Molecules, Vol 25, Iss 12, p 2862 (2020)
The MeOH/CH2Cl2 (1:1) extracts of the roots and leaves of Beilschmiedia louisii and B. obscura showed potent antitrypanosomal activity during preliminary screening on Trypanosoma brucei brucei. Phytochemical investigation of these extracts led to the
Externí odkaz:
https://doaj.org/article/d9edaaa9079443f383695e7ea458bce7
Autor:
Bruno N. Lenta, Jules Ngatchou, Patrice T. Kenfack, Beate Neumann, Hans-Georg Stammler, Norbert Sewald
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 11, Pp o867-o868 (2015)
The crystal structure of the title compound, C32H39NO4, confirms the absolute configuration of the seven chiral centres in the molecule. The molecule has a 1,1-dimethylprop-2-enyl substituent on the indole nucleus and this nucleus shares one edge wit
Externí odkaz:
https://doaj.org/article/73226a15993c41a2a1392ca2ec2506eb
Autor:
Joël E. T. Ateba, Rufin M. K. Toghueo, Angelbert F. Awantu, Brice M. Mba’ning, Sebastian Gohlke, Dinkar Sahal, Edson Rodrigues-Filho, Etienne Tsamo, Fabrice F. Boyom, Norbert Sewald, Bruno N. Lenta
Publikováno v:
Journal of Fungi, Vol 4, Iss 2, p 70 (2018)
There is continuing need for new and improved drugs to tackle malaria, which remains a major public health problem, especially in tropical and subtropical regions of the world. Natural products represent credible sources of new antiplasmodial agents
Externí odkaz:
https://doaj.org/article/997e6f685e2c4050892bdf144f966554
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 7, Pp o457-o458 (2015)
The title compound, C24H31NO3 {systematic name: (E)-3-[(1R*,2S*,4aS*,8aR*)-2-(benzo[d][1,3]dioxol-5-yl)-1,2,4a,5,6,7,8,8a-octahydronaphthalen-1-yl]-N-isobutylacrylamide}, is a natural product isolated from the stem bark of B. obscura. It is composed
Externí odkaz:
https://doaj.org/article/ebfe2a221f42442aba72dae2298b1cc9
Publikováno v:
Bulletin of the Chemical Society of Ethiopia, Vol 18, Iss 2, Pp 175-180 (2004)
A new prenylated pyranoxanthone, symphonin (1), 2-(3,3-dimethylallyl)-1,5- dihydroxy-6,7-dimethoxy-2”,2”-dimethylpyrano (5”,6”:3,4) xanthone, the known compounds guttiferone A, oleanolic acid and sitosterol were isolated from the methanol ext
Externí odkaz:
https://doaj.org/article/e6ef12b658a64590ae1f28363bec976b
Autor:
Morel Hervé D, Kakabi, James D, Simo Mpetga, Jean-De-Dieu, Tamokou, Germaine Takongmo, Matsuete, Romeo Désiré T, Nago, Gabin Thierry M, Bitchagno, Bruno N, Lenta, Norbert, Sewald, Mathieu, Tene, Augustin Silvère, Ngouela
Publikováno v:
Natural product research.
Two new glycosylflavones, 6''
Autor:
Bel Youssouf G. Mountessou, Alexis Sylvain W. Mbobda, Hans-Georg Stammler, Eric O. Akintemi, Maraf B. Mbah, Gervais M. Happi, Simeon F. Kouam, Bruno N. Lenta, Norbert Sewald, Thishana Singh, Ibrahim N. Mbouombouo
Publikováno v:
Journal of Molecular Structure. 1282:135185
Costunolide, a naturally occurring sesquiterpene lactone, was investigated experimentally and theoret-ically to determine the structural, electronic, spectroscopic, and chemical reactivity properties. As de-duced from a single crystal X-ray diffracti
Autor:
Morel Hervé D. Kakabi, James D. Simo Mpetga, Jean-De-Dieu Tamokou, Germaine Takongmo Matsuete, Romeo Désiré T. Nago, Gabin Thierry M. Bitchagno, Bruno N. Lenta, Norbert Sewald, Mathieu Tene, Augustin Silvère Ngouela
Two new glycosylflavones, 6′′-O-acetyl-8-C-β-D-galactopyranosylchrysoeriol (1) and 8-C-β-D-galactopyranosylchrysoeriol (2) were isolated from the methanol extract of the leaves of Ochna afzelii Oliv., along with four known compounds namely 8-C-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7859a9d51c4e8a89f9d68917ed3873f