申请人:West China Hospital, Sichuan University
公开号:EP3750870A1
公开(公告)日:2020-12-16
Disclosed are a quaternary ammonium salt compound, a preparation method therefor and a use thereof. Provided is a novel structural compound as shown in formula I, or a pharmaceutically acceptable salt thereof, or a stereoisomer thereof, or a solvate thereof, or a prodrug thereof, or a metabolite thereof. The compound takes effect rapidly and has a long-time local anesthetic effect following a single dose, with the sensory nerve blocking time being greater than the motor nerve blocking time, has both a long-acting local anesthetic effect and a selective local anesthetic effect, significantly reduces side effects of the compositions QX314 and QX314 and a quaternary ammonium salt compound with surfactant structural characteristics, and is safer. That is, the compound of formula I of the present invention and a pharmaceutically acceptable salt thereof can be used for preparing drugs that are safe and have a long-time local anesthetic effect and a selective local anesthetic effect, and have the advantages of a long local anesthesia time, good local anesthesia selectivity, less nerve injury and high safety.
本发明公开了一种季铵盐化合物、其制备方法及其用途。本发明提供了一种结构如式 I 所示的新型化合物,或其药学上可接受的盐、或其立体异构体、或其溶液剂、或其原药、或其代谢物。该化合物单次给药后起效迅速,局麻作用时间长,感觉神经阻滞时间大于运动神经阻滞时间,既有长效局麻作用,又有选择性局麻作用,显著降低了组合物QX314和QX314以及具有表面活性剂结构特征的季铵盐化合物的副作用,安全性更高。也就是说,本发明的式I化合物及其药学上可接受的盐可用于制备安全、具有长效局麻作用和选择性局麻作用的药物,具有局麻时间长、局麻选择性好、神经损伤小、安全性高等优点。