Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Maya G. Chochkova"'
Autor:
Maya G. Chochkova, Petranka P. Petrova, Boyka M. Stoykova, Galya I. Ivanova, Martin Štícha, Gábor Dibó, Tsenka S. Milkova
Publikováno v:
Journal of Chemistry, Vol 2017 (2017)
Currently, there is an increasing interest towards α-glucosidase inhibition of various diseases including diabetes mellitus type 2, cancer, HIV, and B- and C-type viral hepatitis. Cinnamic acid derivatives have been shown to be potentially valuable
Externí odkaz:
https://doaj.org/article/e8baae40d24b4c6f8454d037a4f07707
Autor:
Venelin Enchev, Tsenka S. Milkova, Hristo Najdenski, Iva Tsvetkova, Martin Štícha, Nadezhda Markova, Maya Chochkova, Boyka Stoykova, Galya Ivanova
N -phenylpropenoyl amino acid amides have been brominated using two alternative sonochemically activated green chemistry procedures. The first synthetic procedure has involved an ultrasound assisted bromination in an aqueous medium using ionic liquid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02e70aef4a48b21da4f100816c2d7f70
Autor:
Xinghua Guo, Maya Chochkova, Ernst Lankmayr, Boyka Stoykova, Galya Ivanova, Tsenka S. Milkova, Andreas Ranz
Publikováno v:
Journal of Fluorine Chemistry. 156:203-208
A series of N -hydroxycinnamoyl amides of fluorinated amino acids were synthesized. Their antioxidant activity was determined using the rapid DPPH test and the activity was compared to that of non-fluorinated analogs and standard antioxidants. Result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6870c1bee6c4483fd96b3799b6f814e8
https://doi.org/10.1016/j.jfluchem.2013.09.013
https://doi.org/10.1016/j.jfluchem.2013.09.013
Autor:
Dilyana Nikolova, Ivan Svinyarov, Yavor Mitrev, Mitko Miliovsky, Yana Evstatieva, Maya Chochkova, Milen G. Bogdanov
A series of new stilbenes 4a–e, 5 were synthesized through a novel one-pot Perkin-like reaction between 6,7-dimethoxyhomophthalic anhydride and aromatic aldehydes, followed by treatment with BBr3. This synthesis is straightforward and allows polyhy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bef51b5a388aa3a6a2bb1c8c9188bd78
Autor:
Hristo Najdenski, Galya Ivanova, Mariana Ninova, Lyubomir Stoev Georgiev, Katya Seizova, Iskra Totseva, Tsenka S. Milkova, Emma M. Marinova, Maya Chochkova
Synthetic hydroxycinnamoylamides of amino acids (precursors of aromatic amines) were studied for their antioxidant activity in vitro by two antioxidant assay systems, including 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and inhibition of lipid pero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbac53c1f2a5918f73262129ee57dfce
Publikováno v:
Bioorganicmedicinal chemistry. 16(15)
The aporphine alkaloid glaucine has been converted into 3-aminomethylglaucine and its free amino group has been linked to cinnamic, ferulic, sinapic, o-, and p-coumaric acids. The antioxidative potential of the synthesized amides was studied against
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b76f213844d4c880753cbc3551a096bb
https://pubmed.ncbi.nlm.nih.gov/18590964
https://pubmed.ncbi.nlm.nih.gov/18590964
Publikováno v:
ResearcherID
The effect of nine synthetic N-hydroxycinnamoyl - amino acid amides (six feruloyl (1-6) and three sinapoyl (7-9) (Table I in the text) on the oxidation stability of a lipid system (kinetically pure triacylglycerols of sunflower oil (TGSO) during oxid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::7ee080596f5941c84dcf5702e2deaccb
https://hdl.handle.net/20.500.12641/38735
https://hdl.handle.net/20.500.12641/38735
Autor:
Maya Spasova, Vessela Kortenska-Kancheva, Iskra Totseva, Lyubomir Georgiev, Galya Ivanova, Tsenka Milkova
Fifteen amides of cinnamic, ferulic and sinapic acids with natural and unnatural C-protected amino acids have been synthesized. The amides (E)-N-(feruloyl)-L-tyrosine methyl ester (10), (E)-N-(feruloyl)-L-phenylalanine t-butyl ester (11), (E)-N-(sina
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cd70f65476d5b44269c652eb7b8798c8
Autor:
Radoslava Kyoseva, Martin Štícha, Hristina Dimitrova-Sbirkova, Yavor Mitrev, Boris Shivachev, Boyka Stoykova, Hailun Jiang, Zhuorong Li, Albena Alexandrova, Maya Chochkova, Rui Liu, Elina Tsvetanova
Herein, framework combinations of antioxidant substituted cinnamic acids and memantine (N-methyl- d -aspartate receptor antagonist) in a new multi-targeted chemical entity were described. The amide bond formation of the memantine hybrids 1–5 was pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13b746350f469a4545ae5ae1474dcb56
Autor:
G Maya Chochkova, Lubomira Nikolaeva-Glomb, S Tsenka Milkova, P Assya Georgieva, I Galya Ivanova, N. Nikolova, Luchia Mukova
Publikováno v:
Journal of the Serbian Chemical Society, Vol 79, Iss 5, Pp 517-526 (2014)
Seven N-hydroxycinnamoyl amides were synthesized by EDC/HOBt coupling of the corresponding substituted cinnamic acids (p-coumaric-, ferulic-, sinapic- and caffeic acids) with influenza antivirals (amantadine, rimantadine and oseltamivir). DPPH (1,1-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a31daf3dbf953dff59c13d7b50f4a20b
https://doi.org/10.2298/jsc130222103c
https://doi.org/10.2298/jsc130222103c