Novel multi-target directed ligands based on annelated xanthine scaffold with aromatic substituents acting on adenosine receptor and monoamine oxidase B. Synthesis, in vitro and in silico studies
作者:Michał Załuski、Jakub Schabikowski、Miriam Schlenk、Agnieszka Olejarz-Maciej、Bartłomiej Kubas、Tadeusz Karcz、Kamil Kuder、Gniewomir Latacz、Małgorzata Zygmunt、David Synak、Sonja Hinz、Christa E. Müller、Katarzyna Kieć-Kononowicz
DOI:10.1016/j.bmc.2019.02.004
日期:2019.4
dual-target-directed ligands combining A2A adenosine receptor (AR) antagonistic activity with blockade of monoamine oxidase B (MAO-B). A library of 37 novel compounds was synthesized and biologically evaluated in radioligand binding studies at AR subtypes and for their ability to inhibit MAO-B. A systematic modification of the tricyclic structures based on a xanthine core by enlargement of the third heterocyclic
N9-苄基取代的咪唑基-,嘧啶基-和1,3-二氮杂[2,1-f]嘌呤二酮被设计为双靶标配体,结合了A2A腺苷受体(AR)拮抗活性和单胺氧化酶B(MAO)的阻断作用-B)。合成了37种新化合物的文库,并通过放射性配体结合研究对AR亚型及其抑制MAO-B的能力进行了生物学评估。基于黄嘌呤核的三环结构的系统修饰通过扩大第三杂环或连接各种取代的苄基部分而导致开发了9-(2-氯-6-氟苄基)-1,3-二甲基-6 ,7,8,9-四氢嘧啶基[2,1-f]嘌呤-2,4(1H,3H)-二酮(9u; Ki人A2AAR:189 nM和IC50人MAO-B:570 nM)是最有效的该系列的双作用配体相对于相关靶标显示出高选择性。此外,在嘧啶基和1,3-二氮杂p [2,1-f]嘌呤二酮类中鉴定出一些有效的,选择性的MAO-B抑制剂。化合物10d(10-(3,4-二氯苄基)-1,3-二甲基-7,8,9,10-四氢-1H-