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27  Articles
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The literary sources relating to the methods for obtaining polycyclic compounds with pyridopyrimidine and pteridine subunits have been systematized and analyzed. The synthetic potential of two main approaches to the processes of formation of these types o... see more

The Neolithic way of life was accompanied by an increase in various forms of physiological stress (e.g. disease, malnutrition). Here we use the method of tooth cementum annulation (TCA) analysis in order to detect physiological stress that is probably rel... see more

The present review highlights advanced strategies to the synthesis of the chromones annulated with O- and N-containing heterocycles at C(7)-C(8) bond. Due to the prevalence of such motives in different kinds of natural flavonoids and some alkaloids, fused... see more

 The review systematizes the theoretical and experimental data concerning methods of synthesis of condensed thiazolopyridines, which at present have been insufficiently studied, the prospects for their application in the directed synthesis of new phy... see more

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 chemi... see more

La restitution des entrées et /ou la fonction de transfert inconnues d’un system, à partir seulement de ses sorties observées, est l’objet de la séparation aveugle de sources. Plusieurs approches ont été proposés, mais qui partagent toutes la même conditi... see more

Le surbooking constitue une stratégie importante pour plusieurs entreprises de services pratiquant le Revenue Management, notamment les hôtels. Après une brève présentation du Revenue Management,  nous examinerons les deux principales approches ... see more

This investigation is devoted to the synthesis of new representatives of 2-amino-5-imidazolil-1,3,4-thiadiazole systems, the study of some chemical transformations and the bactericidal activity. It has been shown that thiosemicarbazones obtained by conden... see more

New fused derivatives – 2-(arylsulfanylmethyl)-2,3,5,6-tetrahydroimidazo[2,1-b][1,3]thiazol-7-onium perchlorates have been synthesized by the cyclosulfenylation reaction of 3-allylthiohydantoin in highly polar nitromethane in the presence of an equimolar ... see more

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