Synthesis, structure–activity relationships, and anticonvulsant activities of 2-amino-4H-pyrido[3,2-e][1,3]thiazin-4-one derivatives as orally active AMPA receptor antagonists
作者:Hiroshi Inami、Jun-ichi Shishikura、Tomoyuki Yasunaga、Kazushige Ohno、Hiroshi Yamashita、Kota Kato、Shuichi Sakamoto
DOI:10.1016/j.bmc.2015.02.033
日期:2015.4
As part of a program aimed at discovering orally active 2-amino-3-(3-hydroxy-5-methyl-4-isoxazolyl)propionic acid (AMPA) receptor antagonists, we screened our compound library and identified 2-[allyl(4-methylphenyl)amino]-4H-pyrido[3,2-e][1,3]thiazin-4-one (7) as a lead compound that inhibited kainate-induced neurotoxicity mediated by AMPA receptors in rat hippocampal cultures. Structure–activity relationship
作为旨在发现口服活性2-氨基-3-(3-羟基-5-甲基-4-异恶唑基)丙酸(AMPA)受体拮抗剂的程序的一部分,我们筛选了化合物库并确定了2- [烯丙基(4 -甲基苯基)氨基] -4 H-吡啶并[3,2- e ] [1,3]噻嗪-4-酮(7)为先导化合物,可抑制由海马培养物中AMPA受体介导的海藻酸盐诱导的神经毒性。一系列2-氨基-4 H-吡啶并[3,2- e ] [1,3]噻嗪-4-酮衍生物的结构-活性关系研究表明,苯环上的取代基与2-氨基和4 H-吡啶基[3,2- e] [1,3]噻嗪-4-酮环系统在抗海藻酸盐诱导的神经毒性的抑制活性中起重要作用。几个带有在3,4-位稠合的4位取代基或5元或6元环的苯基的类似物表现出有效的抑制海藻酸盐诱导的神经毒性的活性。此外,这些化合物中的一些在口服给药后在小鼠中表现出对最大电击癫痫发作的显着抑制。在这些化合物中,2-[((4-氯苯基)(甲基)氨基]