Halogen substituents on the aromatic moiety of the tetracaine scaffold improve potency of cyclic nucleotide-gated channel block
作者:Sarah R. Kirk、Adriana L. Andrade、Kenneth Melich、Evan P. Jackson、Elysia Cuellar、Jeffrey W. Karpen
DOI:10.1016/j.bmcl.2011.08.092
日期:2011.11
tetracaine derivatives with substituents on the aromatic ring was prepared and evaluated for block of retinal rod cyclic nucleotide-gated (CNG) channels. Aromatic substitutions had little effect starting with the basic tetracaine scaffold, but electron-withdrawing substituents significantly improved the blocking potency of an octyl-tail derivative of tetracaine. In particular, halogen substitutions at either
制备了一系列在芳环上带有取代基的新丁卡因衍生物,并评估了其对视网膜杆状环核苷酸门控 (CNG) 通道的阻断作用。从碱性丁卡因支架开始,芳香取代几乎没有影响,但吸电子取代基显着提高了丁卡因的辛基尾衍生物的阻断效力。特别是,环上 2 位或 3 位的卤素取代导致化合物的效力比母体辛基尾衍生物强 8 倍,比丁卡因强 50 倍。