Aminomethyltetrazoles as potential inhibitors of the γ-aminobutyric acid transporters mGAT1–mGAT4: Synthesis and biological evaluation
作者:Eva S. Schaffert、Georg Höfner、Klaus T. Wanner
DOI:10.1016/j.bmc.2011.08.039
日期:2011.11
1,5-Disubstituted and 5-monosubstituted aminomethyltetrazole derivatives derived from glycine were synthesized employing a TMSN3-modified variant of the Ugi reaction as a key step. All compounds were evaluated regarding their inhibitory potency and subtype selectivity at the four murine GABA transporter subtypes mGAT1–mGAT4. Though none of the 5-monosubstituted tetrazoles turned out to inhibit [3H]GABA
以Ugi反应的TMSN 3修饰的变体为关键步骤,合成了衍生自甘氨酸的1,5-二取代和5-单取代的氨基甲基四唑衍生物。对所有化合物在四种鼠类GABA转运蛋白亚型mGAT1–mGAT4上的抑制力和亚型选择性进行了评估。尽管没有5取代的四唑类化合物能抑制[ 3H] GABA的吸收程度很高,1,5-二取代的四唑衍生物表现出独特的活性,尤其是在GABA转运蛋白mGAT2-mGAT4处。因此,发现了合理的有效和选择性的mGAT3抑制剂。另外,鉴定出另外两种化合物是mGAT2的有效抑制剂。这是特别相关的,因为到目前为止,只有很少几种不影响mGAT1的有效mGAT2抑制剂是已知的。