Unexpected result for the acylation of arylhydrazonoethanethioamides

The acylation of arylhydrazonoethanethioamides containing primary amino group did not yield acylthioamides as expected. Surprisingly, the cyclic 5-acylimino-2,5-dihydro-1,2,3-thiadiazoles were obtained. The formation of thiadiazoles in this reaction was explained by the higher ability of arylhydrazono-N-acylthioacetamide intermediates to be oxidized comparing to their precursors. The presence of pseudobicyclic aromatic structure in the reaction product was a main factor favoring the formation of 1,2,3-thiadiazole ring. © 2013 Elsevier Ltd. All rights reserved

Microwave-assisted palladium-catalyzed C-C coupling versus nucleophilic aromatic substitution of hydrogen (SN H) in 5-bromopyrimidine by action of bithiophene and its analogues

5-Bromopyrimidine reacts with 2,2′-bithiophene, [2,2′:5′, 2″]terthiophene and 2-phenylthiophene in the presence of a palladium catalyst to give 5-(het)aryl substituted pyrimidines due to the palladium-catalyzed aryl-aryl C-C coupling. However 5-bromo-4-(het)aryl- pyrimidines have been prepared from the same starting materials through the SN H-reaction catalyzed by a Lewis acid. Conditions for both types of reactions were optimized. All components of the reaction mixtures, including by-products, have been elucidated by gas-liquid chromatography/mass- spectrometry. Evidence for the structure of 4- and 5-bithiophenyl-substituted pyrimidines has first been obtained by means of X-ray crystallography analysis. Molecular orbital calculations (TDDFT), as well as the redox and optical measurements for all new compounds have also been performed. © 2013 Elsevier Ltd. All rights reserved

ЭТИОТРОПНАЯ ТЕРАПИЯ ОСТРЫХ РЕСПИРАТОРНЫХ ВИРУСНЫХ ИНФЕКЦИЙ СО СТЕНОЗИРУЮЩИМИ ЛАРИНГОТРАХЕИТАМИ

Clinical-laboratory analysis of the effectiveness of VIFERON® (suppositories rectal) in children from 1 month up to 7 years with acute respiratory viral infections (ARVI), accompanied by acute stenosing laryngotracheitis (ASLT), hospitalized in Children's City Clinical Hospital №5 named after N.F. Filatov. We have found that the drug VIFERON® helps statistically significant reduction in the duration of all major clinical manifestations of the disease as a whole, and also reduces the severity and duration of clinical symptoms ASLT, and significantly contributes to the faster elimination of viral antigens.Проведен клиническо-лабораторный анализ эффективности препарата ВИФЕРОН® (суппозитории ректальные) у детей в возрасте от 1 мес. до 7 лет с острыми респираторными вирусными инфекциями (ОРВИ), сопровождающимися острым стенозирующим ларинготрахеитом (ОСЛТ), госпитализированных в ДГКБ №5 им. Филатова. Нами установлено, что препарат ВИФЕРОН® способствует статистически значимому сокращению продолжительности основных клинических проявлений заболевания, уменьшает выраженность и продолжительность клинических симптомов ОСЛТ, способствует более быстрой элиминации вирусных антигенов

ETIOTROPIC THERAPY FOR ACUTE RESPIRATORY VIRAL INFECTIONS WITH STENOSING LARYNGOTRACHEITIS

Clinical-laboratory analysis of the effectiveness of VIFERON® (suppositories rectal) in children from 1 month up to 7 years with acute respiratory viral infections (ARVI), accompanied by acute stenosing laryngotracheitis (ASLT), hospitalized in Children's City Clinical Hospital №5 named after N.F. Filatov. We have found that the drug VIFERON® helps statistically significant reduction in the duration of all major clinical manifestations of the disease as a whole, and also reduces the severity and duration of clinical symptoms ASLT, and significantly contributes to the faster elimination of viral antigens