Study of the Lipophilic Character of Xanthine and Adenosine Derivatives: II. Relationships Between Log K', RMand Log P Values

Abstract
The log k' values of a series of xanthine and adenosine derivatives were measured by means of a reversed-phase HPLC. The HPLC data were shown to be well correlated with previously reported RM and RMC18 values. The equations describing the relationships log k'/RM and log k'/RMC18 allowed the calculation of the log k' values of some compounds, which were not tested in the HPLC system. Since the relationship log k'/log P is very close to the previously described relationships RM/log P and RMC18/log P one can conclude that reversed-phase TLC and HPLC are very similar in describing the lipophilicity of the compounds.