含氮杂环在药物和类药物化合物中无处不在;然而,区域选择性合成已被证明具有挑战性。在此,我们报告了我们为开发合成吡唑并[1,5- a ]吡啶的区域选择性方法所做的努力,并偶然发现了一种用于区域选择性形成咪唑并[1,5- a ]吡啶的方案。总之,这些转化允许从一个共同的中间体快速和选择性地形成两个重要的杂环基序。
Structure–activity relationship study of EphB3 receptor tyrosine kinase inhibitors
作者:Lixin Qiao、Sungwoon Choi、April Case、Thomas G. Gainer、Kathleen Seyb、Marcie A. Glicksman、Donald C. Lo、Ross L. Stein、Gregory D. Cuny
DOI:10.1016/j.bmcl.2009.09.010
日期:2009.11
enhanced mouse liver microsome stability. The structure–activity relationship for EphB3 inhibition of both heterocyclicseries was similar. Kinase inhibitory activity was also demonstrated for representative analogs in cell culture. An analog (32, LDN-211904) was also profiled for inhibitory activity against a panel of 288 kinases and found to be quite selective for tyrosine kinases. Overall, these studies
吡唑并[1,5- a ]吡啶的 2-氯苯胺衍生物的构效关系研究表明,通过保留 2-氯苯胺并向 5吡唑并[1,5- a ]吡啶的-位。此外,用咪唑并[1,2- a ]吡啶替代吡唑并[1,5- a ]吡啶具有良好的耐受性,并导致小鼠肝微粒体稳定性增强。EphB3 抑制两种杂环系列的构效关系相似。细胞培养中的代表性类似物也证明了激酶抑制活性。一个模拟 ( 32, LDN-211904) 还分析了对一组 288 种激酶的抑制活性,发现对酪氨酸激酶具有很高的选择性。总体而言,这些研究为检查 EphB3 受体的体外、细胞和潜在的体内激酶依赖性功能提供了有用的分子探针。
Divergent and Regioselective Synthesis of Pyrazolo[1,5-<i>a</i>]pyridines and Imidazo[1,5-<i>a</i>]pyridines
作者:Katrina M. Mennie、Michael H. Reutershan、Catherine White、Bruce Adams、Bridget Becker、James Deng、Jason D. Katz、Elisabeth LaBlue、Kaila Margrey、Josep Saurí
DOI:10.1021/acs.orglett.1c01431
日期:2021.6.18
ubiquitous in pharmaceuticals and drug-like compounds; however, regioselective synthesis has proved challenging. Herein we report our efforts to develop a regioselective method for the synthesis of pyrazolo[1,5-a]pyridines and the serendipitous discovery of a protocol for the regioselective formation of imidazo[1,5-a]pyridines. Together, these transformations allow for the rapid and selective formation
含氮杂环在药物和类药物化合物中无处不在;然而,区域选择性合成已被证明具有挑战性。在此,我们报告了我们为开发合成吡唑并[1,5- a ]吡啶的区域选择性方法所做的努力,并偶然发现了一种用于区域选择性形成咪唑并[1,5- a ]吡啶的方案。总之,这些转化允许从一个共同的中间体快速和选择性地形成两个重要的杂环基序。
Miki, Yasuyoshi; Nakamura, Noriko; Hachiken, Hiroko, Journal of Heterocyclic Chemistry, 1989, vol. 26, p. 1739 - 1745