Biarylcarboxybenzamide derivatives as potent vanilloid receptor (VR1) antagonistic ligands
摘要:
Seventeen biarylcarboxybenzamide derivatives were prepared for the study of their agonistic/antagonistic activities to the vanilloid receptor (VR1) in rat DRG neurons. The replacement of the piperazine moiety of the lead compound I with phenyl ring showed quite enhanced antagonistic activity. Among the prepared derivatives, N-(4-tert-butylphenyl)-4-pyridine-2-yl-benzamide (2, IC50 = 31 nM) and N-(4-tet-t-butylphenyl)-4-(3-methylpyridine-2-yl)benzamide (3g, IC50 = 31 nM), showed 5-fold higher antagonistic activity than 1 in Ca-45 (2+)-influx assay. (C) 2004 Elsevier Ltd. All rights reserved.
NOVEL METHOD OF PREPARING BENZOIMIDAZOLE DERIVATIVES
申请人:Kim In Woo
公开号:US20130231477A1
公开(公告)日:2013-09-05
This invention relates to a method of preparing a benzoimidazole derivative at high purity and high yield so as to enable the production of the benzoimidazole derivative compound as an antagonist against a vanilloid reactor-1, and particularly to a method of preparing a benzoimidazole derivative at high purity and high yield, wherein the benzoimidazole derivative is synthesized using a novel intermediate, namely, benzaldehyde, and thereby the preparation process is simple so that it can be applied to production.
Seventeen biarylcarboxybenzamide derivatives were prepared for the study of their agonistic/antagonistic activities to the vanilloid receptor (VR1) in rat DRG neurons. The replacement of the piperazine moiety of the lead compound I with phenyl ring showed quite enhanced antagonistic activity. Among the prepared derivatives, N-(4-tert-butylphenyl)-4-pyridine-2-yl-benzamide (2, IC50 = 31 nM) and N-(4-tet-t-butylphenyl)-4-(3-methylpyridine-2-yl)benzamide (3g, IC50 = 31 nM), showed 5-fold higher antagonistic activity than 1 in Ca-45 (2+)-influx assay. (C) 2004 Elsevier Ltd. All rights reserved.
[EN] NOVEL METHOD OF PREPARING BENZOIMIDAZOLE DERIVATIVES<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE BENZOIMIDAZOLE