Modulations of the amide function of the preferential dopamine D3 agonist (R,R)-S32504: Improvements of affinity and selectivity for D3 versus D2 receptors
摘要:
Starting with the preferential dopamine (DA) D(3) agonist S32504, we prepared two series of derivatives of the general formula I-A and I-B, in an effort to improve both potency and selectivity. For the first set of derivatives, where the primary amide function of S32504 was replaced by either secondary and tertiary amide or ester, acid, nitrile and ketone, no improvement was obtained. Conversely, when the primary amide function was integrated in a lactam ring, an enhancement of affinity and selectivity was attained for the five-membered ring lactam but also for its five-membered ring lactone analogue. (C) 2009 Elsevier Ltd. All rights reserved.
Compounds of formula I, of trans relative configuration:
wherein:
X represents an oxygen atom or an NR
2
group,
Y represents a group selected from —CH
2
—, —(CH
2
)
2
— and —CH═CH—,
R
1
and R
2
, which may be the same or different, each represents a hydrogen atom or a group selected from alkyl, cycloalkyl and cycloalkylalkyl, in racemic form or in the form of optical isomers, and also addition salts thereof with a pharmaceutically acceptable acid, and hydrates thereof. Medicinal products containing the same which are useful in the treatment of disorders of the central nervous system that involve the dopaminergic system.
Modulations of the amide function of the preferential dopamine D3 agonist (R,R)-S32504: Improvements of affinity and selectivity for D3 versus D2 receptors
作者:Jean-Louis Peglion、Christophe Poitevin、Clotilde Mannoury La Cour、Delphine Dupuis、Mark J. Millan
DOI:10.1016/j.bmcl.2009.03.015
日期:2009.4
Starting with the preferential dopamine (DA) D(3) agonist S32504, we prepared two series of derivatives of the general formula I-A and I-B, in an effort to improve both potency and selectivity. For the first set of derivatives, where the primary amide function of S32504 was replaced by either secondary and tertiary amide or ester, acid, nitrile and ketone, no improvement was obtained. Conversely, when the primary amide function was integrated in a lactam ring, an enhancement of affinity and selectivity was attained for the five-membered ring lactam but also for its five-membered ring lactone analogue. (C) 2009 Elsevier Ltd. All rights reserved.