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Novel potent 5-HT3 receptor ligands based on the pyrrolidone structure. Effects of the quaternization of the basic nitrogen on the interaction with 5-HT3 receptor



Novel potent 5-HT3 receptor ligands based on the pyrrolidone structure. Effects of the quaternization of the basic nitrogen on the interaction with 5-HT3 receptor



Bioorganic and Medicinal Chemistry 10(8): 2681-2691



The results of a comprehensive structure-affinity relationship study on the effect of the quaternization (i.e., N-methylation) of structurally different ligands in the classes of tropane and quinuclidine derivatives are described. This study shows that the effects of the quaternization of the basic nitrogen of these 5-HT(3) receptor ligands appear to be strictly structure-dependent suggesting that different binding modes are operative at 5-HT(3) receptor binding site. The different effect of the quaternization of the basic nitrogen of structurally different ligands were rationalized in terms of the interaction with the receptor by means of the combined use of experimental techniques (X-ray diffraction and NMR studies) and computational simulation studies.

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Accession: 011073107

Download citation: RISBibTeXText

PMID: 12057657

DOI: 10.1016/s0968-0896(02)00093-7


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