Acid‐Base Properties of Pristinamycin IA and Related Compounds
作者:M. Largeron、M.B. Fleury
DOI:10.1002/jps.2600810620
日期:1992.6
acid-base equilibria involved in the protonation of pristinamycinIA and its model compound, N-isobutyl-3-hydroxypicolinamide, were determined by UV-visible absorption spectrometry and potentiometric titration. The equilibrium between dipolar ionic and uncharged neutral forms was investigated spectrometrically in methanol-water solutions. With pristinamycinIA, the dipolar ionic form predominated in aqueous