3-Heteroaryl-Substituted Quinuclidin-3-ol and Quinuclidin-2-ene Derivatives as Muscarinic Antagonists. Synthesis and Structure-Activity Relationships
作者:Bjoern M. Nilsson、Staffan Sundquist、Gary Johansson、Gunnar Nordvall、Gunilla Glas、Lisbeth Nilvebrant、Uli Hacksell
DOI:10.1021/jm00003a011
日期:1995.2
and 16-25) had lower binding affinities for the different muscarinic receptor subtypes than the corresponding quinuclidin-2-ene analogues when examined in the various tissue homogenates. In general, the new compounds showed low subtype selectivity. The structure-affinity relationships are discussed in terms of differences in proton basicity of the azabicyclic nitrogen and differences in geometric, conformational
已经制备了许多3-杂芳基取代的奎尼丁-3-醇和奎尼丁-2-烯衍生物,并评价了毒蕈碱和抗毒蕈碱的性能。使用(-)-[3H]-在豚鼠的大脑皮层,心脏,腮腺和膀胱匀浆中测试了新化合物(13、14、16-32和36-52a,b)的亲和力3-喹uclidinyl benzilate [(-)-[3H] QNB]作为放射性配体,并在功能测定中使用了分离的豚鼠膀胱。本发明化合物在膀胱中起竞争性毒蕈碱拮抗剂的作用。对于3-(2-苯并呋喃基)奎宁环丁-2-烯(31),观察到最高的受体结合亲和力Ki(皮质)= 9.6 nM。相应的3-苯并呋喃基(36)和3-苯并噻吩基(37)同系物对皮质毒蕈碱受体的亲和力低约3.5倍。当在各种组织匀浆中检查时,所有奎宁环素-3-醇衍生物(14和16-25)对不同毒蕈碱受体亚型的结合亲和力均低于相应的奎宁环素-2-烯类似物。通常,新化合物显示出较低的亚型选择性。根据氮杂双环氮的