title: A quantitative structure-activity relationship study on some sulfolanes and arylthiomethanes acting as HIV-1 protease inhibitors.
abstract: A quantitative structure-activity relationship (QSAR) study on some sulfolanes and arylthiomethanes acting as human immunodeficiency virus-1 (HIV-1) protease inhibitors reveals that in the case of sulfolanes an octahydropyrindene ring and a five-membered 3(S)-sulfolane ring with a hydrophobic 2-substituent (cis to 3-substituent) will be crucial for the inhibition activity. The binding of a sulfolane, which is a nonpeptidic molecule, with the enzyme is shown to partly mimic the binding of a peptidic inhibitor. The 2-substituent is found to have strong hydrophobic interaction with the receptor. Similarly, in the case of arylthiomethanes, one of the substituents of the methane is found to have strong hydrophobic interaction with the enzyme, while the aryl substituent (4-hydroxy-6-phenyl-2-oxo-2H-pyran-3-yl) is assumed to be involved in the hydrogen bondings.
authors.affiliation: Birla Institute of Technology and Science, Pilani, India.
authors.forename: S P
authors.initials: SP
authors.lastname: Gupta
authors.forename: M S
authors.initials: MS
authors.lastname: Babu
authors.forename: S
authors.initials: S
authors.lastname: Sowmya
mesh_terms: D018360:Crystallography, X-Ray; D015195:Drug Design; D016333:HIV Protease / Q000378:metabolism*; D017320:HIV Protease Inhibitors / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D015497:HIV-1 / Q000201:enzymology*; D006860:Hydrogen Bonding; D007700:Kinetics; D008697:Methane / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D008958:Models, Molecular; D008968:Molecular Conformation; D015394:Molecular Structure; D012044:Regression Analysis; D013329:Structure-Activity Relationship; D013876:Thiophenes / Q000138:chemical synthesis* / Q000737:chemistry* / Q000494:pharmacology
chemical_list: D017320:HIV Protease Inhibitors; D013876:Thiophenes; D016333:HIV Protease; D008697:Methane; C013693:sulfolane