Search Results - "Shemchuk, A. L."

Spiro[benzo[е]pyrano[3,2-c][1,2]oxathiin-4,3’-indolil]-3-carbonitrile 5,5-dioxides: synthesis and the biological activity study by Grygoriv, G. V., Lega, D. A., Zupanets, I. A., Shebeko, S. K., Zimin, S. M., Starchikova, I. L., Shemchuk, L. A.

“…The development of medicines with several pharmacological activities, including the analgesic, anti-inflammatory and antimicrobial properties, is one of the…”
Get full text

Hydrolytic opening of the quinazoline ring in 3-furfuryl-4-oxo-3,4-dihydroquinazoline derivatives by Shemchuk, L. A, Chernykh, V. P, Levashov, D. V, Sytnik, K. M

“…Ethyl 3-furfuryl-4-oxo-3,4-dihydroquinazoline-2-carboxylate extremely readily undergoes hydrolysis in acid, alkaline, or neutral medium with formation of…”
Get full text

Synthesis of 3-aryl-2-[hydroxy(diaryl)methyl]-4-oxo-3,4-dihydroquinazolines by Shemchuk, L. A, Chernykh, V. P, Levashov, D. V, Sytnik, K. M, Shemchuk, L. M

“…By heating arylamides of N-ethoxalylanthranilic acid in the acetic acid mediun in the presence of triethylamine the corresponding ethyl…”
Get full text

Reaction of anthranilic acid amides with cyclic anhydrides by Shemchuk, L. A., Chernykh, V. P., Krys’kiv, O. S.

Get full text

Domino-reactions of 1,2-benzoxathiin-4(3H)-one 2,2-dioxide, hetarenecarbaldehydes and active methylene nitriles in the construction of new 2-amino-4H-pyrans and the study of their antimicrobial properties by Grygoriv, G. V., Lega, D. A., Chernykh, V. P., Osolodchenko, T. P., Shemchuk, L. A.

Get full text

The study of the three-component interaction between isatin, α-amino acids and N,N’-di(3-carboxypropenoyl)-1,2-ethylenediamine and determination of the structure of the compounds obtained by Syumka, Ye. I., Shemchuk, L. A., Chernykh, V. P., Redkin, R. G.

Get full text

The study of the three-component interaction between 1-ethyl-1H-2,1-benzothiazin-4(3H)-one 2,2-dioxide, heterylcarbaldehydes and active methylene nitriles by Lega, D. A., Chernykh, V. P., Shemchuk, L. A.

Get full text

Synthesis and the antimicrobial activity of hexamethylene-Nmaleinimidospiroindole- 3,3’-pyrrolo[3,4-c]pyrrole derivatives by Suymka, Ye. I., Red’kin, R. G., Shemchuk, L. A., Hlebova, K. V., Filimonova, N. I.

Get full text

Synthesis of 1,2-benzoxathiine 2,2-dioxide derivatives using aliphatic aldehydes and assessment of their antimicrobial activity by Grygoriv, G. V., Lega, D. O., Chernykh, V. P., Osolodchenko, T. P., Shemchuk, L. A.

Get full text

Chemical transformations of new mono- and bis-derivatives of spiroindol-3,3’-pyrrolo[3,4-c]pyrrole based on bis-maleiminides and the study of the microbiological activity of the compounds synthesized by Siumka, Ye. I., Sytnik, K. M., Levashov, D. V., Spychak, T. V., Horiachyi, V. D., Shemchuk, L. A.

“…Aim. To synthesize new derivatives based on hexamethylene(ethylene)-N,N’-bis(spiroindole-3,3’-pyrrolo-[3,4-c]pyrrole-2a,5a’-dihydro-2,2’,6’(1H,1’H,5’H)-trions)…”
Get full text

The use of aliphatic aldehydes in the synthesis of new pyran annulated derivatives of 1h-2,1-benzothiazin-4-one 2,2-dioxide via domino-type interactions. The antimicrobial activity of the compounds synthesized by Lega, D. A., Filimonova, N. I., Geyderikh, O. G., Chernykh, V. P., Shemchuk, L. A.

Get full text

The synthesis, anti-inflammatory, analgesic and antimicrobial activities of ethyl 2-amino-4-alkyl-4,6-dihydropyrano[3,2c][2,1]benzothiazin-3-carboxylate 5,5-dioxides and triethylammonium 3-[(4-hydroxy-1-ethyl-2,2-dioxido-1h-2,1-benzothiazin-3-yl)alkyl]-1 by Lega, D. A., Filimonova, N. I., Zupanets, I. A., Shebeko, S. K., Chernykh, V. P., Shemchuk, L. A.

Get full text

Synthesis of fused 2′-amino-3′-R-spiro-[indole-3,4′-pyran]-2(1H)-ones by Shemchuk, L. A., Chernykh, V. P., Red’kin, R. G.

“…An efficient one-pot procedure has been proposed for the synthesis of fused 2′-amino-3′-R-spiro-[indole-3,4′-pyran]-2(1 H )-ones via base-catalyzed…”
Get full text

The investigation of the “chemical structure – antihypoxic action” dependence in a series of indole and 2-oxindole derivatives containing the ethylamine fragment by Redkin, R. Gr, Chernykh, V. P., Shemchuk, L. A., Tsubanova, N. A., Shtrygol, S. Yu

Get full text

4-hydroxy-2-quinolones. 201. Synthesis, structure, and diuretic activity of hydroxy- and alkoxy- anilides of 6-hydroxy-2-methyl-4-oxo-2,4-dihydro- 1H-pyrrolo[3,2,1-ij]quinoline-5-carboxylic acid by Ukrainets, I. V., Golik, N. Yu, Shemchuk, A. L., Kravchenko, V. N.

“…Hydroxy- and alkoxyanilides of 6-hydroxy-2-methyl-4-oxo-2,4-dihydro-1 H -pyrrolo[3,2,1- ij ]quinoline-5-carboxylic acids have been synthesized as potential…”
Get full text

4-hydroxy-2-quinolones. 197. The search for novel diuretics amongst halo-substituted 6-hydroxy-2-methyl-4-oxo-1,2-dihydro-4H-pyrrolo-[3,2,1-ij]quinoline-5-carboxylic acid anilides by Ukrainets, I. V., Golik, N. Yu, Shemchuk, A. L., Naboka, O. I., Voronina, Yu. V., Turov, A. V.

“…A targeted synthesis of a series of halo-substituted 6-hydroxy-2-methyl-4-oxo-1,2-dihydro-4 H -pyrrolo-[3,2,1- ij ]quinoline-5-carboxylic acid anilides have…”
Get full text

Reaction of anthranilic acid 2-N-phenylhydrazide with cyclic anhydrides by Shemchuk, L. A., Chernykh, V. P., Krys’kiv, O. S.

“…In the reaction with cyclic anhydrides the anthranilic acid 2- N -phenylhydrazide depending on conditions yielded either anthranilic acid 2- N -acyl-2- N…”
Get full text

Synthesis of N-(4-oxo-3,4-dihydroquinazolin-3-yl)succinimide and N-(4-oxoquinazolin-3-yl)succinamic acid derivatives based thereon by Shemchuk, L. A., Chernykh, V. P., Arzumanov, P. S., Levashov, D. V., Shemchuk, L. M.

Get full text

Reactions of ethyl oxamate and dialkyl oxalates with anthranilic acid derivatives by Shemchuk, L. A., Chernykh, V. P., Arzumanov, P. S., Krys’kiv, O. S.

Get full text

Synthesis of 3-amino-3,4-dihydroquinazolin-4-one derivatives from anthranilic acid hydrazide and dicarboxylic acids by Shemchuk, L. A., Chernykh, V. P., Arzumanov, P. S., Starchikova, I. L.

Get full text