14047-53-1Relevant academic research and scientific papers
Synthesis and biological activity of quaternary phosphonium salts based on 3-hydroxypyridine and 4-deoxypyridoxine
Shtyrlin,Vafina,Pugachev,Khaziev,Nikitina,Zeldi,Iksanova,Shtyrlin, Yu. G.
, p. 537 - 545 (2017/03/08)
Methods for the synthesis of quaternary phosphonium salts based on 3-hydroxypyridine and 4-deoxypyridoxine were developed. Some of obtained compounds possess high antibacterial and antitumor activity in vitro.
ELECTROCHEMICAL REDUCTION OF PRISTINAMYCIN IA AND RELATED STREPTOGRAMINS IN AQUEOUS ACIDIC MEDIUM
Largeron, M.,Vuilhorgne, M.,Potier, I. Le,Auzeil, N.,Bacque, E.,and al.
, p. 6307 - 6332 (2007/10/02)
The electrochemical reduction of the picolinoyl residue of pristinamycinIA and related streptogramins was performed at a mercury cathode, in aqueous medium.The presence of a peptidic lactone residue at the amide nitrogen atom markedly modified the expected cathodic behaviour of pyridyl carboxamides: in particular, we observed the reduction of the pyridyl ring into tetrahydropyridine derivatives.Thanks to a series of model heterocyclic carboxamides, increasing steric hindrance at the amide nitrogen position was shown to lead to enhanced reduction of the heterocyclic ring.
Acid-catalysed Rearrangement of 3-Acyl-6-alkoxy-5,6-dihydro-4H-1,2-oxazines: a Route to 3-Alkoxypyridine 1-Oxides
Gilchrist, Thomas L.,Iskander, George M.,Yagoub, Ahmed K.
, p. 2769 - 2774 (2007/10/02)
6-Alkoxy-5,6-dihydro-4H-1,2-oxazines (2) and (5) have been prepared by the reaction of chloro oximes (1) with enol ethers in the presence of sodium carbonate.The 3-phenyloxazine (2) rearranges to the nitrone (3) in methanolic HCl.In contrast, the 3-acyloxazines (5a-e) are converted into 3-alkoxypyridine 1-oxides (7) in aqueous alcoholic HCl.With HCl in acetic acid the oxazine (5a) is converted into 2-chloromethyl-3-hydroxypuridine hydrochloride (10a); analogous reactions take place with oxazines (5b) and (5d).Possible mechanisms for these reactions are discussed.
CERTAIN THIAZOLES AND OXAZOLES
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, (2008/06/13)
The compounds are N,N'-substituted thioureas, ureas and guanidines which are H-2 histamine receptor inhibitors. Two compounds of this invention are N,N'-bis 2-((4-methyl-5-imidazolyl)methylthio) ethyl!thiourea and N,N'-bis 2-((4-methyl-5-imidazolyl)methylthio)ethyl!-N"-cyanoguanidine. "
