This invention relates to compounds of formula I
their use as positive allosteric modulators of mGlu5 receptor activity, pharmaceutical compositions containing the same, and methods of using the same as agents for treatment and/or prevention of neurological and psychiatric disorders associated with glutamate dysfunction such as schizophrenia or cognitive decline such as dementia or cognitive impairment. A, B, Ar, R
1
, R
2
, R
3
, R
3a
have meanings given in the description.
[EN] 4-ARYL IMIDAZOLE DERIVATIVES AS MGLUR5 POSITIVE ALLOSTERIC MODULATORS<br/>[FR] DÉRIVÉS DE 4-ARYL-IMIDAZOLE À TITRE DE MODULATEURS ALLOSTÉRIQUES POSITIFS DE MGLUR5
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2013087739A1
公开(公告)日:2013-06-20
This invention relates to compounds of formula (I) their use as positive allosteric modulators of mGlu5 receptor activity, pharmaceutical compositions containing the same, and methods of using the same as agents for treatment and/or prevention of neurological and psychiatric disorders associated with glutamate dysfunction such as schizophrenia or cognitive decline such as dementia or cognitive impairment. A, B, X, R1, R2, R3 have meanings given in the description.
Diversity Synthesis via C−H Bond Functionalization: Concept-Guided Development of New C-Arylation Methods for Imidazoles
作者:Bengü Sezen、Dalibor Sames
DOI:10.1021/ja036157j
日期:2003.9.1
systematic and comprehensive arylation of the 2-phenylimidazole core was feasible, and in the context of this study new arylation methods were developed. The direct 4-arylation of free 2-phenylimidazole was achieved with iodoarenes as the aryl donors in the presence of palladium catalyst (Pd/Ph(3)P) and magnesium oxide as the base. A complete switch from C-4 to C-2' arylation was accomplished using a ruthenium
Synthesis of benzoazepine derivatives <i>via</i> Rh(<scp>iii</scp>)-catalyzed inert C(sp<sup>2</sup>)–H functionalization and [4 + 3] annulation
作者:Yuanshuang Xu、Linghua Zhang、Mengyang Liu、Xiaopeng Zhang、Xinying Zhang、Xuesen Fan
DOI:10.1039/c9ob01830a
日期:——
In this paper, a novel and sustainable synthesis of the hitherto unreported 5H-benzo[c]imidazo[1,2-a]azepine-6-carboxylic acids via the cascade reactions of 2-arylimidazoles (1) with methylene-oxetanones (2) is presented. Mechanistically, the formation of the title compounds is triggered by a Rh(iii)-catalyzed C(sp2)-H alkenylation of 1 with 2 followed by an intramolecular N-nucleophilic substitution