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247  Articles
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The latest published data on heterocyclization of amides of alkenylcarboxylic acids have been systematized. It has been proven that the electrophilic intramolecular cyclization reaction of functionally substituted olefins opened in the 70s of the las... see more

The literature references concerning the biological activity of pyrido[3,2-d]pyrimidines and condensed polycyclic systems based on them have been systematized and analyzed. The main methods of the synthesis of polyheterocycles containing the pyrido[3,2-d]... see more

The role of the electrophilic intramolecular cyclization (EIC) reaction of unsaturated carboxylic acid amides has been described for the design of arylthio-containing lactams and lactones. In order to identify the effect of the styryl moiety on ... see more

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

Aim. To study the effect of the structural parameters of styrylacetic acid amides on the course of the reaction of the electrophilic intramolecular cyclization under the action of polyphosphoric acid and search the rational approaches to obtain N-unsubsti... see more

Aim. To extend the synthetic limits of the reaction of the electrophilic intramolecular cyclization (EIC) on the examples of 5,5-disubstituted and 5-yliden substituted 3-allyl-2-thiohydantoins and the directed structural modification of 2-halogenomethyl-2... see more

Chemical transformations of eudesmane sesquiterpene ?-lactones, leading to new biologically active compounds, have become an important direction in medicinal chemistry. This article discusses the stereoscopic intramolecular transformations of the sesquite... 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

Piperidines spiro-fused to other heterocycles and being structural elements of pharmacologically active molecules can be considered as “preferred fragments” of metabotropic receptor ligands. The method for obtaining 1,2,8-triazaspiro [4.5]decane comp... see more

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