Study of the relationship between nitrogen basicity and receptor affinity in a substituted quinoline series
β Scribed by M. B. Fleury; M. Largeron; D. Fleury; J. C. Vernieres
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- English
- Weight
- 419 KB
- Volume
- 79
- Category
- Article
- ISSN
- 0022-3549
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β¦ Synopsis
In buffered watermethanol media, the pK, values of acidbase equilibria involved in the protonation of substituted quinolines are determined by UV-visible absorption spectrometry. The observed behavior depends on the nature of RP: the N-CH, derivatives exist as quinoline, the N-H derivatives as 44minoquinoline tautomers. The irninoquinoline zwitterionic species present at physiological pH may have high receptor affinity. A linear relationship between pK, of the endocyclic nitrogen and log IC,, is discussed.
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