alexa Time-related differences in the physical property profiles of oral drugs.
Medicine

Medicine

Drug Designing: Open Access

Author(s): Leeson PD, Davis AM

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Abstract Comparisons of the calculated physicochemical properties of oral drugs launched prior to 1983 (864 drugs) and between 1983 and 2002 (329 drugs) show that mean values of lipophilicity, percent polar surface area and H-bond donor count are the same, suggesting that these are the most important oral druglike physical properties. In contrast, mean values of molecular weight and the numbers of O + N atoms, H-bond acceptors, and rotatable bonds and rings have increased in 1983-2002 drugs (by 13-29\%). Analysis of the 1983-2002 oral drugs by therapy area shows that antiinfectives and nervous system drugs have the most extreme physical property profiles. Cardiovascular drugs show increasing molecular weight with year of publication, primarily a consequence of focusing on clinically proven mechanisms, with limited chemical diversity. Drug classes other than antiinfectives show comparable distributions of lipophilicity, suggesting that this property in oral drugs is important irrespective of the drug's target. The results suggest that the balance between polar and nonpolar drug properties is an important, unchanging feature of oral drug molecules. This article was published in J Med Chem and referenced in Drug Designing: Open Access

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