4-Substituted-3-phenylquinolin-2(1<i>H</i>)-ones: Acidic and Nonacidic Glycine Site <i>N</i>-Methyl-<scp>d</scp>-aspartate Antagonists with <i>in</i> <i>Vivo</i> Activity
作者:Robert W. Carling、Paul D. Leeson、Kevin W. Moore、Christopher R. Moyes、Matthew Duncton、Martin L. Hudson、Raymond Baker、Alan C. Foster、Sarah Grimwood、John A. Kemp、George R. Marshall、Mark D. Tricklebank、Kay L. Saywell
DOI:10.1021/jm9605492
日期:1997.2.1
4-Substituted-3-phenylquinolin-2(1H)-ones have been synthesized and evaluated in vitro for antagonist activity at the glycine site on the NMDA (N-methyl-D-aspartate) receptor and in vivo for anticonvulsant activity in the DBA/2 strain of mouse in an audiogenic seizure model. 4-Amino-3-phenylquinolin-2(1H)-one (3) is 40-fold lower in binding affinity but only 4-fold weaker as an anticonvulsant than
合成了4-取代的3-苯基喹啉-2(1H)-ones,并在体外评估了NMDA(N-甲基-D-天冬氨酸)受体甘氨酸位点的拮抗剂活性,并在体内评估了DBA中的抗惊厥活性。在音源性癫痫发作模型中为小鼠的/ 2品系。4-氨基-3-苯基喹啉-2(1H)-一(3)的结合亲和力比酸性4-羟基化合物1低40倍,但作为抗惊厥剂仅弱4倍。图3给出了一种酸性化合物(6,pKa = 6.0),其亲和力被完全恢复,但体内效力却显着降低(表1)。1的4位甲基化可得到18个结果,从而消除了可测量的亲和力,但是,中性氢键接受基团与18的甲基相连会产生具有与1相当的体外和体内活性的化合物(例如,表2中的23和28)。用乙基取代1的4-羟基可消除活性(42),但再次,将中性氢键受体结合到末端碳原子上可恢复亲和力(例如,表3中的36、39和40)。用氨基取代高亲和力化合物2的4-羟基会产生亲和力降低200倍的化合物(43; IC50