A series of some novel N-(l-ethyl-2-pyrrolidinylmethyl)benzamides was synthesized and tested for dopamine receptor blockade in vivo by the ability to block the apomorphine syndrome in the rat. Several compounds were considerably more potent than sulpiride as dopamine receptor blockers and displayed low liability to induce extrapyramidal side effects (catalepsy) in the rat. The blockade of dopamine receptor activity in vivo was mainly confined to the levorotatory isomers having the S absolute configuration. The structure-activity relationships are discussed.
[EN] CYCLOPENTYLBENZAMIDE DERIVATIVES AND THEIR USE FOR THE TREATMENT OF PSYCHOTIC AND COGNITIVE DISORDERS<br/>[FR] DÉRIVÉS DE CYCLOPENTYLBENZAMIDE ET LEUR UTILISATION POUR LE TRAITEMENT DE TROUBLES PSYCHOTIQUES OU COGNITIFS
申请人:TAKEDA CAMBRIDGE LTD
公开号:WO2015055994A1
公开(公告)日:2015-04-23
The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof, wherein n, L, X, Ra, Rb, R1, R2 and R3 their preparation, pharmaceutical compositions containing them and their use in therapy.