Due to their beneficial side effect profile, NMDA receptor antagonists interacting selectively with the allosteric ifenprodil binding site of the GluN2B subunit are of major interest for the treatment of neurological and neurodegenerative disorders. A series of benzo[7]annulen-7-amines 6 was designed by conformational restriction of ifenprodil (1). At first the benzo[7]annulen-7-one 11 was prepared in a three-step synthesis comprising of a double Knoevenagel condensation of phthalaldehyde (7) with dimethyl 3-oxoglutarate (8), hydrogenation of 9 and saponification/decarboxylation of 10. Reductive amination of the ketone 11 with primary amines and NaBH(OAc)(3) led to the secondary amines 6a-d, cis-6h and trans-6i. The tertiary amines 6e-g were obtained by S(N)2-substitution of the nosylate 13. Although H-bond forming substituents in 2- and 5-position are missing, the amines 6 exhibit high affinity towards GluN2B containing NMDA receptors. A distance of four to five bond lengths between the basic amino moiety and the phenyl ring in the side chain appears to be optimal for high GluN2B affinity. The phenylcyclohexylamine cis-6h and the 4-benzylpiperidine 6g show the highest GluN2B affinities (K-i = 2.3 nM and 2.9 nM, respectively). With respect to selectivity against the PCP binding site, sigma(1) and sigma(2) receptors the phenylpiperazine 6f is the most promising GluN2B antagonist. (C) 2014 Elsevier Ltd. All rights reserved.
SIGMA RECEPTOR LIGANDS AND THE USE THEREOF
申请人:VIRGINIA COMMONWEALTH UNIVERSITY
公开号:EP0507863A1
公开(公告)日:1992-10-14
EP0507863A4
申请人:——
公开号:EP0507863A4
公开(公告)日:1993-07-07
US6057371A
申请人:——
公开号:US6057371A
公开(公告)日:2000-05-02
[EN] SIGMA RECEPTOR LIGANDS AND THE USE THEREOF
申请人:——
公开号:WO1991009594A1
公开(公告)日:1991-07-11
[EN] The invention relates to methods for the treatment of schizophrenia or other psychoses by administering a pharmaceutical composition comprising an effective amount of certain sigma receptor ligands to a patient in need of such treatment. The invention further relates to novel sigma receptor ligands having high binding to the sigma receptor and pharmaceutical compositions thereof. [FR] Procédés de traitement de la schizophrénie ou d'autres psychoses, par administration d'une composition pharmaceutique comprenant une quantité efficace de certains ligands de récepteur sigma, à un patient nécessitant un tel traitement. L'invention concerne également de nouveaux ligands de récepteur sigma, présentant une liaison élevée aux récepteurs sigma, ainsi que leurs compositions pharmaceutiques.