Michael Poslusney, Glen Ernst, Yifang Huang, Aaron C Gerlach, Mark L Chapman, Sónia Santos, James C Barrow
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引用次数: 0
Abstract
The voltage-gated sodium channel Nav1.8 (SCN10A) has strong genetic and pharmacological validation as a potential target for treating acute and chronic pain. While several different chemotypes have been advanced as selective inhibitors, a quinoxaline carboxamide core structure was identified as a particularly attractive core structure due to very high sodium channel subtype selectivity. However, poor solubility and overall ADME properties need to be improved. Scaffold hopping to a central trifluoromethyl pyridine followed by optimization of distal substituents resulted in improved overall properties. Several advanced lead compounds have been identified with excellent potency, selectivity, solubility, and pharmacokinetics. Preliminary mechanism of action studies suggest that this class of compounds are voltage and state independent inhibitors that bind to a novel site on the Nav1.8 channel.
期刊介绍:
Bioorganic & Medicinal Chemistry Letters presents preliminary experimental or theoretical research results of outstanding significance and timeliness on all aspects of science at the interface of chemistry and biology and on major advances in drug design and development. The journal publishes articles in the form of communications reporting experimental or theoretical results of special interest, and strives to provide maximum dissemination to a large, international audience.