申请人:WEST CHINA HOSPITAL, SICHUAN UNIVERSITY
公开号:US20220135526A1
公开(公告)日:2022-05-05
A quaternary ammonium salt compound of formula I is fast-acting and has a long-term local anaesthetic effect after a single administration, the sensory nerve block time being longer than the motor nerve block time, has both a long-acting local anaesthetic effect and a selective local anaesthetic effect, and also significantly reduces the side effects of quaternary ammonium salt compounds with the structural features of surfactants and is highly safe; thus, the compound of formula I and the pharmaceutically acceptable salt thereof can be used for the preparation of saft drugs having a long-term local anaesthetic effect and a selective local anaesthetic effect