A novel class of tetrazole-derived Kv1.5 blockers is disclosed. In in vitro studies, several compounds had IC(50)s ranging from 180 to 550 nM. In vivo studies indicated that compounds 2f and 2j increased right atrial ERP about 40% without affecting ventricular ERP.

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http://dx.doi.org/10.1016/j.bmcl.2006.09.021DOI Listing

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