pK(a) Determinations for Montelukast Sodium and Levodropropizine


NARİN İ., Sarioglan S. , Anilanmert B., Sari H.

JOURNAL OF SOLUTION CHEMISTRY, cilt.39, ss.1582-1588, 2010 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 39 Konu: 10
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s10953-010-9604-z
  • Dergi Adı: JOURNAL OF SOLUTION CHEMISTRY
  • Sayfa Sayısı: ss.1582-1588

Özet

The pK (a) constants and relative abundances of unionized and ionized forms of Montelukast sodium {the sodium salt of 2-[1-[[(1R)-1-[3-[2-(7-chloroquinolin-2-yl)ethenyl] phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid} and Levodropropizine {(2S)-3-(4-phenylpiperazin-1-yl)propane-1,2-diol} were determined potentiometrically from measurements at various pHs. These determinations were in order to relate their pK (a) values with their bioavailability and to provide chemical data to be used in their analysis.