Anna Goldnik

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The stability as a function of time of compounds with established anticonvulsant activity: picolinic acid benzylamide (Pic-BZA), picolinic acid 2-fluorobenzylamide (Pic-2-F-BZA), picolinic acid 3-fluorobenzylamide (Pic-3-F-BZA), picolinic acid 4-fluorobenzylamide (Pic-4-F-BZA) and picolinic acid 2-methylbenzylamide (Pic-2-Me-BZA) in body fluids and(More)
A series of new seven potential renin inhibitors containing pseudodipeptides were synthesized. Stability for all compounds (1-7) in homogenates of liver, kidney, lung and in serum, gastric, intestinal juice and in the presence of α-chymotrypsin was determined. Compound 1 was unstable in all determined mediums. Compounds 2, 4, 5 and 7 were unstable, compound(More)
A series of new six pseudodipeptic potential renin inhibitors were synthesized. Enzymatic stability for all compounds (1-6) in homogenates (liver, kidney, lung) and body fluids (serum, gastric, intestinal juice) and alpha-chymotrypsin was determined. Compounds 4 was stable, compound 5 was unstable and compounds 1, 2, 3, 6 were partly unstable. Inhibitory(More)
Qualitative and quantitative methods for analysis of 2-methyl-3(2-pyridyl-methyl)-3H-pyrido-[2,3-d]-pyrimidin-4-on dihydrochloride were developed. Qualitative analysis included characteristic reactions, chromatographic investigations, interpretation of IR and UV spectra and quantitative analysis included spectrophotometric, argentometric and alkalimetric(More)
Stability of two compounds with established anticonvulsant activity, picolinic acid benzylamide (Pic-BZA) and nicotinic acid benzylamide (Nic-BZA), incubated in homogenates of body organs and in body fluids was determined at different time points. Pic-BZA was found to decompose fairly rapidly in the liver and the kidney, while Nic-BZA demonstrated stability(More)
A series of new six potential renin inhibitors containing pseudodipeptides were synthesized. Stability for all compounds (1-6) in homogenates of liver, kidney, lung and in serum, gastric, intestinal juice and in the presence of alpha-chymotrypsin was determined. Compound 5 was unstable, compound 6 was stable, other compounds were partly unstable, compound 2(More)
Qualitative and quantitative methods of analysis of three new amino-acid derivatives potential anticonvulsants of low neurotoxicity: picolinic acid benzylamide (1), nicotinic acid benzylamide (2) and isonicotinic acid benzylamide (3) were developed. Qualitative analysis includes characteristic reactions, chromatographic (TLC) investigations, IR and UV(More)
In search for new drugs lowering arterial blood pressure, which could be applied in anti-hypertensive therapy, research concerning agents blocking of renin-angiotensin-aldosteron system has been conducted. Despite many years of research conducted at many research centers around the world, aliskiren is the only one renin inhibitor, which is used up to now.(More)