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In order to optimize our novel integrin alpha(v)beta3/alpha(IIb)beta3 dual antagonists, spatial screening at the N-terminus was performed. The alpha(v)beta3 antagonistic activity varied depending on the space that was occupied by the N-terminus, but high potency against alpha(IIb)beta3 was well maintained. The (3S)-aminopiperidine analogue had the strongest activity against alpha(v)beta3, and the S isomer at piperidine was more potent than the R isomer. Compounds selected on the basis of SAR analysis of a novel lead compound showed acceptable early absorption, distribution, metabolism, excretion, and toxicity (ADMET) profiles and sufficient water solubility for use as infusion drugs. Docking studies with the alpha(v)beta3 receptor were performed to confirm the SAR findings.
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| http://dx.doi.org/10.1016/j.bmc.2005.10.055 | DOI Listing |
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