[EN] NOVEL PYRIDINIUM COMPOUNDS<br/>[FR] NOUVEAUX COMPOSÉS DE PYRIDINIUM
申请人:TORRENT PHARMACEUTICALS LTD
公开号:WO2016162785A1
公开(公告)日:2016-10-13
The present invention relates to novel pyridinium compounds, their isomers, steroisomers, atropisomers, conformers, tautomers, polymorphs, hydrates and solvates. The present invention also encompasses process for preparing novel compounds and pharmaceutical composition of said compounds. The invention further relates to the use of the above mentioned compounds for the preparation of medicament for use as pharmaceuticals.
作者:Rigo, Benoit、Fasseur, Dominique、Cauliez, Pascal、Couturier, Daniel
DOI:——
日期:——
Reaction of 3-[(alkylsulfanyl)methyl]pentane-2,4-diones with nicotinic hydrazide
作者:Larisa A. Baeva、Radik M. Nugumanov、Rail R. Gataullin、Akhnef А. Fatykhov
DOI:10.1007/s10593-020-02698-1
日期:2020.5
The reaction of 3-[(alkylsulfanyl)methyl]pentane-2,4-diones with nicotinic hydrazide in ethanol as solvent produces 4-[(alkylsulfanyl)- methyl]-substituted 1-(pyridin-3-yl)carbonyl-1H-pyrazoles, whereas 1-acyl-1H-pyrazoles are formed in acetic, propanoic, or pentanoic acidsolution. The reaction in methanol in the presence of ZnCl2 is accompanied by elimination of nicotinic acid and the formation of
3-[(烷基硫烷基)甲基]戊烷-2,4-二酮与烟酰胺在乙醇中的溶剂反应生成4-[(烷基硫烷基)-甲基]-取代的1-(吡啶-3-基)羰基-1 H -吡唑,而1-酰基-1 H-吡唑在乙酸,丙酸或戊酸溶液中形成。在ZnCl 2存在下在甲醇中的反应伴随有烟酸的消除和(烷基硫烷基)甲基取代的1 H-吡唑的形成。