Biological significance Flashcards
what are the biological significance in Log P measurements in vitro?
predication of biological activity
understanding of mechanism of drug action
what does log P tell you?
the lipophilicity of a drug
what does log D tell you?
the effect of pH on the lipophilicity
what is most commonly used to mimic biological partition?
n-Octanol
what is involved in drug action?
random walk to the site of action (dependent of partition coefficient)
attachment to specific drug receptor site (dependent of shape and binding properties of drug)
what is the Hansch equation?
log B = k1log P + k2σ + k3Es + k4
what does the Hansch equation show?
quantitative structure activity relationship