First Structure−Activity Relationship Study on Dopamine D3 Receptor Agents with N-[4-(4-Arylpiperazin-1-yl)butyl]arylcarboxamide Structure
摘要:
Structure-affinity relationships of N-[4-(4-arylpiperazin-1-yl)butyl]arylcarboxamides as D-3 receptor ligands have been well characterized but not structure-activity relationships. In a first attempt to clarify this issue, seven 1-(2,3dichlorophenyl)piperazine derivatives and their 2-methoxyphenyl counterparts were prepared by varying the arylcarbox-amide moiety. They were tested for D3 receptor binding affinities and in the Eu-GTP binding assay in order to evaluate their intrinsic activity. We have found that the intrinsic activity strongly depended on the nature of the arylearboxamide moiety.
Nickel‐Catalyzed Reductive Coupling of Vinyl Triflates and 1,4‐Dicyanobenzene to Access Alkenyl Nitriles
作者:Le‐Le Wang、Zhong‐Xian Li、Jun Zhu
DOI:10.1002/adsc.202301072
日期:2024.2.19
We report a vinyl cyanation reaction of vinyl triflates and readily available 1,4-dicyanobenzene through a nickel-catalyzed reductive coupling process. The reaction is operated under mild conditions with remarkable functional-group compatibility. Cyclic vinyl triflates with various ring sizes and substituents at different positions all reacted smoothly. The synthetic utility is demonstrated by the