Peking University

Changling Li

Xin Wang

Qi Sun

Runtao Li

Zemei Ge

Tieming Cheng

Jia Ye

Caiqin Yue

Compounds represented by general formula (I), their stereoisomers, tautomers, derivatives, prodrugs or pharmaceutically acceptable salts, and their preparation methods or uses for the manufacture of a medicament of analgesics. In which Ris selected from H, substituted or unsubstituted phenyl, or substituted or unsubstituted heteroaryl; A is bond, or saturated or unsaturated straight-chain or branched-chain hydrocarbon radical; R, Rare each independently hydrogen or methyl, which linked with any position of spirocyclo-structure; n and m are each independently integer between 0-2, do not represent 0 at the same time; B and D are each independently C-Cstraight-chain or branched-chain alkylene; Y is selected from &#x2014;CHR&#x2014;, O, S, &#x2014;S(O)&#x2014;, &#x2014;SO&#x2014;, &#x2014;NR&#x2014; and substituted or unsubstituted phenylene, in which Rrepresents H, C-Csaturated or unsaturated alkyl, methyl or ethyl substituted by substituted or unsubstituted aryl or heteroaryl; and Xis pharmaceutical acceptable organic or inorganic anion. These compounds can be used as muscarine receptor (M-receptor) and/or nicotine acetylcholine receptor (N-receptor) agonist or antagonist. These compounds have good analgesic effect without side effect such as addiction. 

Quaternary ammonium salt compounds of spirocyclopiperazines, preparation methods and uses thereof

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Changling Li