The synthesis of novel spirocyclic N-aryl-substituted 2-thiopyrimidine-4,6-diones
Journal Title: Журнал органічної та фармацевтичної хімії; Журнал органической и фармацевтической химии - Year 2019, Vol 17, Issue 1
Abstract
A convenient and efficient method for the synthesis of new unsaturated spiro-annulated N-aryl-4,6-dioxopyrimidine-2-thione derivatives has been developed. The resulting compounds can be potential biological active molecules or precursors for further chemical modification. Aim. To develop the methods for the synthesis of new unsaturated spiro-annulated 2-thiopyrimidine-4,6-dione derivatives, which can be used as potentially biological active molecules or precursors for their formation. Results and discussion. By condensation of N-aryl-substituted thioureas and allylmalonic acid using acetic anhydride or acetyl chloride the series of 5-allyl-substituted 2-thiopyrimidinediones has been synthesized. Their further alkylation with allyl bromide or metallyl chloride led to formation of 5,5-dialkenyl derivatives, which were converted to the corresponding unsaturated spirocyclic dioxopyrimidine-2-thiones by ring-closing metathesis. Experimental part. The synthesis of the starting compounds and title products was performed by preparative chemical methods, TLC and column chromatography, elemental analysis, NMR-spectroscopy. Conclusions. The efficient three-step synthetic route of new unsaturated spiro-annulated N-aryl-4,6-dioxopyrimidine-2-thione derivatives from the starting N-arylsubstituted thioureas and allylmalonic acid has been developed. The spiro-annulated products obtained can find application in biological and pharmaceutical science or as starting substrates for further chemical modification.
Authors and Affiliations
N. I. Kobyzhcha, V. M. Holovatiuk, V. V. Rozhkov, V. I. Kashkovsky
Keywords
Related Articles
- EP ID EP659345
- DOI 10.24959/ophcj.19.962
- Views 89
- Downloads 0
Synthesis and antioxidant properties of novel thiazolo[4,5-b]pyridine-2-ones
Aim. To expand the synthetic potential of thiazolo[4,5-b]pyridines, study the reactivity and perform the pharmacological screening of the antioxidant activity of the novel compounds synthesized. Results and discussion. A...
Development and validation of GLC/MS-procedure of doxylamine quantitative determination
Doxylamine is a hypnotic medicine used for treatment of minor sleep disorders and is a frequent cause of poisoning. Aim. To develop GLC/MS-procedure of doxylamine quantification and carry out step-by-step validation of t...
Розробка та валідація ВЕРХ/УФ-методик визначення ефавіренцу в біологічних рідинах
Ефавіренц – ненуклеозидний інгібітор зворотної транскриптази з рядом побічних ефектів, що проявляються психіатричними симптомами. Описані випадки гострих отруєнь при застосуванні ефавіренцу, включаючи спроби самогубств,...
Синтез нових спіроциклічних N-арилзаміщених 2-тіопіримідин-4,6-діонів
Розроблено зручний та ефективний метод синтезу нових ненасичених спіро-анельованих N-арилзаміщених 2-тіопіримідин-4,6-діонів. Одержані сполуки можуть бути потенційними біоактивними молекулами або прекурсорами для подальш...
Development and validation of the HPLC-procedure for the quantitative determination of isosorbide dinitrate in matrix granules
Isosorbide dinitrate is a universally recognized drug for the relief of angina attacks. Today, prolonged forms of isosorbide dinitrate are of great interest due to their high antianginal efficacy and lower frequency of s...