Determining Chemical Reactivity Driving Biological Activity from SMILES Transformations: The Bonding Mechanism of Anti-HIV Pyrimidines

Molecules

Mihai V. Putz¹ 

关键词: anti-HIV activity;    1;    3-disubstituted uracil derivatives;    QSAR;    SMILES;    electronegativity;    chemical hardness;    chemical power;    electrophilicity;    chemical reactivity principles;    lipophilicity;   

DOI  :  10.3390/molecules18089061

来源: mdpi

【 摘 要 】

Assessing the molecular mechanism of a chemical-biological interaction and bonding stands as the ultimate goal of any modern quantitative structure-activity relationship (QSAR) study. To this end the present work employs the main chemical reactivity structural descriptors (electronegativity, chemical hardness, chemical power, electrophilicity) to unfold the variational QSAR though their min-max correspondence principles as applied to the Simplified Molecular Input Line Entry System (SMILES) transformation of selected uracil derivatives with anti-HIV potential with the aim of establishing the main stages whereby the given compounds may inhibit HIV infection. The bonding can be completely described by explicitly considering by means of basic indices and chemical reactivity principles two forms of SMILES structures of the pyrimidines, the Longest SMILES Molecular Chain (LoSMoC) and the Branching SMILES (BraS), respectively, as the effective forms involved in the anti-HIV activity mechanism and according to the present work, also necessary intermediates in molecular pathways targeting/docking biological sites of interest.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.