Chinese Journal of Organic Chemistry ›› 2026, Vol. 46 ›› Issue (9): 3722-3730.DOI: 10.6023/cjoc202601042 Previous Articles     Next Articles

ARTICLE

主客体络合驱动的开环葫芦脲对琥珀胆碱神经肌肉阻滞的快速拮抗

张丹维a,*(), 高睿a, 冯科b, 余尚博b, 王辉a, 周伟a,*(), 黎占亭a,b,*()   

  1. a 复旦大学化学系 上海 200438
    b 中国科学院上海有机化学研究所 金属有机化学全国重点实验室 上海 200032
  • 收稿日期:2026-01-26 修回日期:2026-04-06 发布日期:2026-05-07
  • 通讯作者: 张丹维, 周伟, 黎占亭
  • 基金资助:
    国家自然科学基金(22531011); 国家自然科学基金(22271059)

Acyclic Cucurbit[n]uril as Supramolecular Antagonist for Rapidly Reversing the Neuromuscular Blockade of Succinylcholine through Host-Guest Complexation

Dan-Wei Zhanga,*(), Rui Gaoa, Ke Fengb, Shangbo Yub, Hui Wanga, Wei Zhoua,*(), Zhan-Ting Lia,b,*()   

  1. a Department of Chemistry, Fudan University, Shanghai 200438
    b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032
  • Received:2026-01-26 Revised:2026-04-06 Published:2026-05-07
  • Contact: Dan-Wei Zhang, Wei Zhou, Zhan-Ting Li
  • About author:

    Dedicated to the 100th anniversary of the birth of Professor Xikui Jiang.

  • Supported by:
    National Natural Science Foundation of China(22531011); National Natural Science Foundation of China(22271059)

Seven new acyclic cucurbit[n]urils have been prepared. Compound ACB-p2 displays high water-solubility and high biocompatibility, with maximum tolerated dose reaching 1500 mg/kg for mice. The compound is revealed to have high binding affinity (Ka=1.7×105 L•mol-1) in water for succinylcholine (SCH), clinically used short-duration neuromuscular blocking agent. 1H NMR and density functional theory calculation show that ACB-p2 binds to SCH mainly by encapsulating the choline segment of SCH in its hydrophobic cavity, which is stabilized by multiple intermolecular C—H…O hydrogen bonds. The high binding affinity of ACB-p2 for SCH leads to rapid antagonism of the neuromuscular blockade of SCH. For rats, compound ACB-p2 of the 80 and 160 mg/kg doses is capable of shortening the recovery time for spontaneous respiration averagely from 195 s to 38 and 23 s, respectively, corresponding to therapeutic an index of 11.8 and 5.9.

Key words: host-guest chemistry, acyclic cucurbit[n]uril, succinylcholine, antidote, neuromuscular blockade, supramolecular antagonism, drug design