N-(4-(4-(2,3-Dichloro- or 2-methoxyphenyl)piperazin-1-yl)butyl)heterobiarylcarboxamides with Functionalized Linking Chains as High Affinity and Enantioselective D3 Receptor Antagonists
摘要:
In the present report, the D3 receptor pharmacophore is modified in the 2,3-diCl- and 2-OCH3-phenylpiperazine class of compounds with the goal to improve D3 receptor affinity and selectivity. This extension of structure-activity relationships (SAR) has resulted in the identification of the first enantioselective D3 antagonists (R- and S-22) to be reported, wherein enantioselectivity is more pronounced at D3 than at D2, and that a binding region on the second extracellular loop (E2) may play a role in both enantioselectivity and D3 receptor selectivity. Moreover, we have discovered some of the most D3-selective compounds reported to date that show high affinity (K-i = 1 nM) for D3 and similar to 400-fold selectivity over the D2 receptor subtype. Several of these analogues showed exquisite selectivity for D3 receptors over >60 other receptors, further underscoring their value as in vivo research tools. These lead compounds also have appropriate physical characteristics for in vivo exploration and therefore will be useful in determining how intrinsic activity at D3 receptors tested in vitro is related to behaviors in animal models of addiction and other neuropsychiatric disorders.
4-PHENYLPIPERAZINE DERIVATIVES WITH FUNCTIONALIZED LINKERS AS DOPAMINE D3 RECEPTOR SELECTIVE LIGANDS AND METHODS OF USE
申请人:Newman Amy Hauck
公开号:US20100267737A1
公开(公告)日:2010-10-21
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.
[EN] 4-PHENYLPIPERAZINE DERIVATIVES WITH FUNCTIONALIZED LINKERS AS DOPAMINE D3 RECEPTOR SELECTIVE LIGANDS AND METHODS OF USE<br/>[FR] DÉRIVÉS DE LA 4-PHÉNYLPIPÉRAZINE AVEC DES LIEURS FONCTIONNALISÉS TELS QUE LES LIGANDS SÉLECTIFS DU RÉCEPTEUR D3 DE LA DOPAMINE ET PROCÉDÉS D'UTILISATION
申请人:US GOV HEALTH & HUMAN SERV
公开号:WO2008153573A1
公开(公告)日:2008-12-18
[EN] Dopamine D3 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 D3 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 D3 receptors and achieve high selectivity over D2 and D4 receptors. [FR] Les antagonistes du récepteur D3 de la dopamine et les agonistes partiels sont connus pour moduler les effets de renforcement et de recherche de drogue induits par la cocaïne et d'autres substances induisant une dépendance. En introduisant une fonctionnalité dans la chaîne de liaison butylamide des ligands de la classe 4-phénylpipérazine, on obtient de meilleures affinité et sélectivité pour le récepteur D3, ainsi qu'une meilleure solubilité dans l'eau. L'invention concerne également une série de dérivés de chaînes de liaison dans lesquels une fonctionnalité telle que des groupes OH ou OAc ont été introduits à l'intérieur de la chaîne de liaison. En général, ces modifications sont bien tolérées par les récepteurs D3 et permettent d'obtenir une sélectivité élevée par rapport aux récepteurs D2 et D4.
<i>N</i>-(4-(4-(2,3-Dichloro- or 2-methoxyphenyl)piperazin-1-yl)butyl)heterobiarylcarboxamides with Functionalized Linking Chains as High Affinity and Enantioselective D3 Receptor Antagonists
作者:Amy Hauck Newman、Peter Grundt、George Cyriac、Jeffrey R. Deschamps、Michelle Taylor、Rakesh Kumar、David Ho、Robert R. Luedtke
DOI:10.1021/jm900095y
日期:2009.4.23
In the present report, the D3 receptor pharmacophore is modified in the 2,3-diCl- and 2-OCH3-phenylpiperazine class of compounds with the goal to improve D3 receptor affinity and selectivity. This extension of structure-activity relationships (SAR) has resulted in the identification of the first enantioselective D3 antagonists (R- and S-22) to be reported, wherein enantioselectivity is more pronounced at D3 than at D2, and that a binding region on the second extracellular loop (E2) may play a role in both enantioselectivity and D3 receptor selectivity. Moreover, we have discovered some of the most D3-selective compounds reported to date that show high affinity (K-i = 1 nM) for D3 and similar to 400-fold selectivity over the D2 receptor subtype. Several of these analogues showed exquisite selectivity for D3 receptors over >60 other receptors, further underscoring their value as in vivo research tools. These lead compounds also have appropriate physical characteristics for in vivo exploration and therefore will be useful in determining how intrinsic activity at D3 receptors tested in vitro is related to behaviors in animal models of addiction and other neuropsychiatric disorders.