Dopamine D
3
receptor antagonists and partial agonists are known to modulate the reinforcing and drug-seeking effects induced by cocaine and other abused substances. By introducing functionality into the butylamide linking chain of the 4-phenylpiperazine class of ligands, improved D
3
receptor affinity and selectivity, as well as water solubility, is achieved. A series of linking-chain derivatives are disclosed wherein functionality such as OH or OAc groups have been introduced into the linking chain. In general, these modifications are well tolerated at D
3
receptors and achieve high selectivity over D
2
and D
4
receptors.
多巴胺D3受体拮抗剂和部分激动剂已知可以调节
可卡因和其他滥用物质引起的强化和寻药效应。通过在4-苯基
哌嗪类
配体的丁酰胺链中引入功能基团,可以获得改进的D3受体亲和力和选择性,以及
水溶性。公开了一系列链连接衍
生物,其中引入了OH或OAc基团等功能基团。一般来说,这些修饰在D3受体上很好地耐受,并实现了对D2和
D4受体的高选择性。