Zobrazeno 1 - 10
of 52
pro vyhledávání: '"David W. Gammon"'
Publikováno v:
South African Journal of Science, Vol 120, Iss 1/2 (2024)
Although South Africa is known as one of the most biodiverse countries in the world, based on its unique plants and animals, microorganisms have received much less attention. Microorganisms in general and actinobacteria in particular are an underexpl
Externí odkaz:
https://doaj.org/article/c1c19b965d2648a2add20f29867c4e0d
Autor:
Kojo Sekyi Acquah, Denzil R. Beukes, Ronnett Seldon, Audrey Jordaan, Suthananda N. Sunassee, Digby F. Warner, David W. Gammon
Publikováno v:
Medicines, Vol 9, Iss 2, p 9 (2022)
Tuberculosis (TB) remains a public health crisis, requiring the urgent identification of new anti-mycobacterial drugs. We screened several organic and aqueous marine invertebrate extracts for their in vitro inhibitory activity against the causative o
Externí odkaz:
https://doaj.org/article/de1fa207bf2b402a97761e4dc7922c0a
Autor:
Kojo Sekyi Acquah, Denzil R. Beukes, Digby F. Warner, Paul R. Meyers, Suthananda N. Sunassee, Fleurdeliz Maglangit, Hai Deng, Marcel Jaspars, David W. Gammon
Publikováno v:
Molecules, Vol 25, Iss 13, p 2979 (2020)
In this paper, we report on the chemistry of the rare South African Actinomycete Kribbella speibonae strain SK5, a prolific producer of hydroxamate siderophores and their congeners. Two new analogues, dehydroxylated desferrioxamines, speibonoxamine 1
Externí odkaz:
https://doaj.org/article/bfdfa51ab65e476aaab094dbf0e9a09d
Autor:
Lesley Green, David W. Gammon, Michael T. Hoffman, Joshua Cohen, Amelia Hilgart, Robert G. Morrell, Helen Verran, Nicola Wheat
Publikováno v:
South African Journal of Science, Vol 111, Iss 9/10, Pp 12-12 (2015)
In Paulshoek, Namaqualand, three research projects focusing on medicinal plants were developed concurrently. The projects were based in the disciplines of anthropology, botany and chemistry. In this paper, we explore how these projects related to one
Externí odkaz:
https://doaj.org/article/f2672b50e3cd44499543fbae44c3f391
Autor:
Digby F. Warner, Hai Deng, Kojo Sekyi Acquah, Paul R. Meyers, Suthananda N. Sunassee, Denzil R. Beukes, Marcel Jaspars, Fleurdeliz Maglangit, David W. Gammon
Publikováno v:
Molecules
Volume 25
Issue 13
Molecules, Vol 25, Iss 2979, p 2979 (2020)
Volume 25
Issue 13
Molecules, Vol 25, Iss 2979, p 2979 (2020)
In this paper, we report on the chemistry of the rare South African Actinomycete Kribbella speibonae strain SK5, a prolific producer of hydroxamate siderophores and their congeners. Two new analogues, dehydroxylated desferrioxamines, speibonoxamine 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e4455358f1747a8faff5edfc5443eb1
Mechanistic Insight into the Conversion of Tetrose Sugars to Novel α-Hydroxy Acid Platform Molecules
Autor:
Filip de Clippel, David W. Gammon, Pieter Van Wouwe, Michiel Dusselier, Jan Dijkmans, Bert F. Sels
Publikováno v:
ChemCatChem. 5:569-575
α-Hydroxy acids (AHAs) such as lactic acid are considered platform molecules in the biorefinery concept and have high-end applications in solvents and biodegradable polyester plastics. The synthesis of AHAs with a four-carbon backbone structure is a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a11ac2ec0652a2f2070c164ddca0b06c
https://doi.org/10.1002/cctc.201200476
https://doi.org/10.1002/cctc.201200476
Publikováno v:
Carbohydrate Research. 359:18-23
Thioglucosides of cysteine show variable stability depending on the nature of the protecting groups on the glycosyl donor. Armed protecting groups (benzyl) lead to products that decompose readily while disarmed protecting groups (acetyl) lead to more
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9acfb4fad5432853b14b8b61bd29d777
https://doi.org/10.1016/j.carres.2012.06.022
https://doi.org/10.1016/j.carres.2012.06.022
Publikováno v:
Carbohydrate Research. 351:49-55
Two further variations of the Ferrier-type allylic rearrangements of 1,2-cyclopropanated glucose derivatives bearing an acetoxylated carbon at the 1′-position are described. In the first, treatment of the cyclopropanated sugar with a nucleophile (R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cdec98a7ad8fc5f1739b9da8f92358c8
https://doi.org/10.1016/j.carres.2012.01.006
https://doi.org/10.1016/j.carres.2012.01.006
Autor:
Comfort M. Nkambule, David W. Gammon
The protective role of mycothiol in the Actinomycetes in relation to oxidative stress and detoxification, continues to attract interest, with enzymes implicated in its biosynthesis and processing recognized as potential drug targets for mycobacterial
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::426c27c76c776e419e6f79391033dce6
https://doi.org/10.1039/9781782620600-00124
https://doi.org/10.1039/9781782620600-00124
Autor:
Mbulelo G. Nokwequ, David W. Gammon, Erik A. Karlsson, Henok H. Kinfe, Nomfundo W. Kwezi, Comfort M. Nkambule, Stefan Oscarson
Publikováno v:
Tetrahedron. 67:618-623
A cis-1,2-cyclohexanediol, 1,4,5,6-tetra-O-benzyl-myo-inositol, was selectively protected at the axial C2-hydroxyl via acid-mediated rearrangement of the corresponding 1,2-orthoacetate, or via the base-induced migration of a protecting group that had
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cb9dec6f5c14577b02a9243947f78be6
https://doi.org/10.1016/j.tet.2010.11.063
https://doi.org/10.1016/j.tet.2010.11.063