Abstract:
:Novel benzo[d]oxazol-2(3H)-one derivatives were designed and synthesized, and their affinities against sigma receptors were evaluated. On the basis of 31 compounds, a three-dimensional pharmacophore model for the sigma(1) receptor binding site was developed using the Catalyst 4.9 software package. The best 3D pharmacophore hypothesis, consisting of one positive ionizable, one hydrogen bond acceptor, two hydrophobic aromatic, and one hydrophobic features provided a 3D-QSAR model with a correlation coefficient of 0.89. The best hypothesis was also validated by three independent methods, i.e., the Fisher randomization test included in the CatScramble functionality of Catalyst, the leave-one-out test, and activity prediction of an additional test set. The achieved results will allow researchers to use this 3D pharmacophore model for the design and synthesis of a second generation of high affinity sigma(1) ligands, as well as to discover other lead compounds for this class of receptors.
journal_name
J Med Chemjournal_title
Journal of medicinal chemistryauthors
Zampieri D,Mamolo MG,Laurini E,Florio C,Zanette C,Fermeglia M,Posocco P,Paneni MS,Pricl S,Vio Ldoi
10.1021/jm900366zsubject
Has Abstractpub_date
2009-09-10 00:00:00pages
5380-93issue
17eissn
0022-2623issn
1520-4804journal_volume
52pub_type
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