The present invention is directed to the radioligand compound, [
35
S]-radiolabeled (+)-N-[1′-(6-cyano-1,2,3,4-tetrahydro-2(R)-naphthalenyl)-3,4-dihydro-4(R)-hydoxyspiro[2H-1-benzopyran-2,4′-piperidin]-6-yl]methanesulfonamide. Also within the scope of this invention is a method for identifying compounds that bind to the I
Kr
channel, and may have antiarrhythmic activity.
本发明涉及放射
配体化合物,即[35S]-放射标记的(+)-N-[1′-(6-
氰基-1,2,3,4-四氢-2(R)-
萘基)-3,4-二氢-4(R)-羟基螺[2H-1-苯并
吡喃-2,4′-
哌啶]-6-基]甲磺酰胺。本发明还涵盖了一种用于识别与IKr通道结合并可能具有抗心律失常活性的化合物的方法。