7-HYDROXY-PYRAZOLO[1,5-A] PYRIMIDINE COMPOUNDS AND THEIR USE AS CCR2 RECEPTOR ANTAGONISTS
申请人:Boyd Joe William
公开号:US20130252951A1
公开(公告)日:2013-09-26
The compounds of formula (I) are antagonists of the CCR2 receptor Wherein R
1-7
and A are as defined in the claims.
式(I)的化合物是CCR2受体的拮抗剂,其中R1-7和A如权利要求中所定义。
Enantioselective Synthesis of Medium-Sized-Ring Lactones via Iridium-Catalyzed <i>Z</i>-Retentive Asymmetric Allylic Substitution Reaction
作者:Lu Ding、Hao Song、Chao Zheng、Shu-Li You
DOI:10.1021/jacs.2c01103
日期:2022.3.23
Medium-sized rings are important structural units, but their synthesis, especially in a highly enantioselective manner, has been a great challenge. Herein we report an enantioselectivesynthesis of medium-sized-ring lactones by an iridium-catalyzed Z-retentive asymmetric allylic substitution reaction. The reaction features mild conditions and a broad substrate scope. Various eight- to 11-membered-ring
中等大小的环是重要的结构单元,但它们的合成,特别是以高度对映选择性的方式,一直是一个巨大的挑战。在这里,我们报告了通过铱催化的Z保持不对称烯丙基取代反应对中型环内酯的对映选择性合成。该反应条件温和,底物范围广。各种 8 至 11 元环内酯可以中等至优异的产率(高达 88%)和优异的对映选择性(高达 99% ee)提供。Z-烯丙基前体和 Ir 催化剂的利用对于中等环的形成至关重要。
Synthesis and Pharmacological Evaluation of Triazolopyrimidinone Derivatives as Noncompetitive, Intracellular Antagonists for CC Chemokine Receptors 2 and 5
作者:Natalia V. Ortiz Zacarías、Jacobus P. D. van Veldhoven、Lisa S. den Hollander、Burak Dogan、Joseph Openy、Ya-Yun Hsiao、Eelke B. Lenselink、Laura H. Heitman、Adriaan P. IJzerman
DOI:10.1021/acs.jmedchem.9b00742
日期:2019.12.26
CC chemokine receptors 2 (CCR2) and 5 (CCR5) are involved in many inflammatory diseases; however, most CCR2 and CCR5 clinical candidates have been unsuccessful. (Pre)clinical evidence suggests that dual CCR2/CCR5 inhibition might be more effective in the treatment of such multifactorial diseases. In this regard, the highly conserved intracellular binding site in chemokine receptors provides a new avenue for the design of multitarget ligands. In this study, we synthesized and evaluated the biological activity of a series of triazolopyrimidinone derivatives in CCR2 and CCR5. Radioligand binding assays first showed that they bind to the intracellular site of CCR2, and in combination with functional assays on CCR5, we explored structure-affinity/activity relationships in both receptors. Although most compounds were CCR2-selective, 39 and 43 inhibited beta-arrestin recruitment in CCR5 with high potency. Moreover, these compounds displayed an insurmountable mechanism of inhibition in both receptors, which holds promise for improved efficacy in inflammatory diseases.