Summary
2-Chloroquinoline-3-carbaldehyde and 2-chloro-4-methylquinoline-3-carbaldehyde have been prepared from acetanilide and acetoacetanilidevia a Vilsmeier-Haack reaction. Upon reaction with phenyl hydrazine, hydroxylamine, urea, and thiourea in presence of acetic acid, these chloroaldehydes afforded the title compounds which exhibit a several times higher analgesic activity than noramidopyrine (NAP).
Zusammenfassung
2-Chlorchinolin-3-carbaldehyd und 2-Chlor-4-methylchinolin-3-carbaldehyd wurden, ausgehend von Acetanilid und Acetylacetanilid, über eineVilsmeier-Haack-Reaktion hergestellt. Reaktion dieser chlorsubstituierten Aldehyde mit Phenylhydrazin, Hydroxylamin, Harnstoff und Thioharnstoff ergab die Titelverbindungen, deren analgetische Aktivität jene von Noramidopyrin (NAP) um ein Mehrfaches übertrifft.
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Kidwai, M., Negi, N. Synthesis of some novel substituted quinolines as potent analgesic agents. Monatsh Chem 128, 85–89 (1997). https://doi.org/10.1007/BF00807642
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DOI: https://doi.org/10.1007/BF00807642