Abstract
Modification of the pendant functionalities on a quinazolinone scaffold led to potent antagonist activity for integrin αVβ3 with selectivity over integrin αIIbβ3. Various guanidine mimetics, linkers, and arylsulfonamides were investigated to optimize the series. A molecular model was constructed based on a published X-ray structure and used to analyze ligand-receptor interactions. We identified key interactions for the quinazolinone and arylsulfonamide groups that may explain the changes in potency in the structure-function study.
Keywords: Quinazolinone, Vitronectin Receptor, Ligand-Receptor
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