Quaternization of pyrido[2,3-b]pyrazines: proton and carbon-13 NMR study. was written by Chupakhin, O. N.;Charushin, V. N.;Chernyshev, A. I.;Esipov, S. E.. And the article was included in Magnetic Resonance in Chemistry in 1985.Recommanded Product: Pyrido[2,3-b]pyrazine This article mentions the following:
The structure of N-methylpyrido[2,3-b]pyrazinium salts was examined by 1H and 13C NMR, 6-Dimethylamino- and 6-morpholino-pyrido[2,3-b]pyrazines undergo quaternization by Me iodide at N-4 of the pyrazine ring, whereas the pyridine ring N-5 was the N-alkylation site in the reaction of unsubstituted pyrido[2,3-b]pyrazine with Me iodide under the same conditions. The effects of quaternization on the 1H and 13C chem. shifts and the J(CH) values are discussed. In the experiment, the researchers used many compounds, for example, Pyrido[2,3-b]pyrazine (cas: 322-46-3Recommanded Product: Pyrido[2,3-b]pyrazine).
Pyrido[2,3-b]pyrazine (cas: 322-46-3) belongs to pyrazine derivatives. Pyrazine derivatives have antitumor, antibiotic, anticonvulsant, antituberculous and diuretic effects as well as kinase, enzymatic and potent tubulin and FtsZ polymerization inhibitory activities. Substituted pyrazines have been found as subunits of multiple synthetically constructed therapeutic agents, as well as several natural products.Recommanded Product: Pyrido[2,3-b]pyrazine