Synthesis and Binding Affinity of 2-Phenylimidazo[1,2-<i>a</i>]pyridine Derivatives for both Central and Peripheral Benzodiazepine Receptors. A New Series of High-Affinity and Selective Ligands for the Peripheral Type
作者:Giuseppe Trapani、Massimo Franco、Laura Ricciardi、Andrea Latrofa、Giuseppe Genchi、Enrico Sanna、Francesca Tuveri、Elisabetta Cagetti、Giovanni Biggio、Gaetano Liso
DOI:10.1021/jm970112+
日期:1997.9.1
prepared following new synthetic methods, and their affinities for both the central (CBR) and the peripheral (PBR) benzodiazepine receptors evaluated. The compounds of the ester series displayed low affinity for both receptor types. Conversely, most of N,N-dialkyl(2-phenylimidazo[1,2-alpha]pyridin-3-yl)acetamides 7e-t proved to possess high affinity and selectivity for CBR or PBR depending on the nature
若干个6-取代或6,8-二取代的2-苯基咪唑并[1,2-α-吡啶-3-羧酸烷基酯5a-h,-乙酸酯5i-s,6a-g和-丙酸酯5t,6h和N,N-二烷基-2-苯基咪唑并[1,2-α吡啶-3-甲酰胺7a-d,-乙酰胺7e-t或-丙酰胺7u是按照新的合成方法制备的,并且它们对两个环的亲和力(CBR )和外围(PBR)苯并二氮杂receptor受体进行了评估。酯系列化合物对两种受体类型均显示出低亲和力。相反,大多数N,N-二烷基(2-苯基咪唑并[1,2-α吡啶基-3-基]乙酰胺)7e-t对CBR或PBR具有高亲和性和选择性,这取决于C(C 6)-和/或杂环系统上的C(8)。特别是,6-取代的化合物7f-n的IC50值之比(IC50(CBR)/ IC50(PBR))为0.32(7m)至232(7k),而6,8-二取代的化合物7o-t大于PBR的选择性是CBR的1000倍。检查了几种不同的苯二氮卓类