Structure−Activity Relationships in a Series of 2(1<i>H</i>)-Quinolones Bearing Different Acidic Function in the 3-Position: 6,7-Dichloro-2(1<i>H</i>)-oxoquinoline-3-phosphonic Acid, a New Potent and Selective AMPA/Kainate Antagonist with Neuroprotective Properties
作者:Patrice Desos、Jean M. Lepagnol、Philippe Morain、Pierre Lestage、Alex A. Cordi
DOI:10.1021/jm950323j
日期:1996.1.1
compound 6 was devoid of in vivo activity in mice anticonvulsant testing. To overcome this critical limitation, new compounds bearing various acidic moieties at the 3-position of the quinolone skeleton were synthesized and evaluated. The SAR of these new analogues indicated that not all acidic groups are acceptable at the 3-position: A rank order of potency going from carboxylic approximately phosphonic >
最近,我们报道了3-(磺酰氨基)-2(1H)-喹诺酮类化合物的合成,这是一系列新的α-氨基-3-羟基-5-甲基异恶唑-4-丙酸(AMPA)/海藻酸酯和N-甲基- D-天冬氨酸(NMDA)/甘氨酸拮抗剂。通过探索该系列中的构效关系(SAR),我们能够确定6,7-二硝基衍生物6是这两种受体的有效且平衡的拮抗剂。不幸的是,化合物6在小鼠抗惊厥试验中缺乏体内活性。为了克服这一关键限制,合成并评估了在喹诺酮骨架的3位带有各种酸性部分的新化合物。这些新类似物的SAR表示,并非所有的酸性基团在3位上都是可接受的:效力的等级顺序是从羧基到大约膦酸>四唑> 定义了巯基乙酸>异羟肟酸酯>>其他杂环酸。此外,AMPA /海藻酸酯和NMDA /甘氨酸位点之间的选择性取决于取代的性质(对于AMPA选择性,硝基>氯),其位置(对于甘氨酸选择性,其5,7-> 6,7-模式),以及喹诺酮部分与带有酸性氢的杂原子之间的距离