[EN] PROCESS FOR THE PREPARATION OF AN ENDOTHELIN RECEPTOR ANTAGONIST<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN ANTAGONISTE DU RÉCEPTEUR DE L'ENDOTHÉLINE
申请人:CIPLA LTD
公开号:WO2013057468A1
公开(公告)日:2013-04-25
The present invention relates to a novel process for the preparation of a compound of formula (I) wherein R is a methyl or methoxy group; to certain novel intermediates prepared in such a process and their use.
[EN] QUINOXALINONE DERIVATIVES AS INSULIN SECRETION STIMULATORS, METHODS FOR OBTAINING THEM AND USE THEREOF FOR THE TREATMENT OF DIABETES<br/>[FR] DÉRIVÉS DE QUINOXALINONE COMME STIMULATEURS DE LA SÉCRÉTION D'INSULINE, LEURS PROCÉDÉS D'OBTENTION ET LEUR UTILISATION POUR LE TRAITEMENT DU DIABÈTE
申请人:MERCK PATENT GMBH
公开号:WO2009109258A1
公开(公告)日:2009-09-11
The present invention relates to quinoxalinone derivatives of formula (I), wherein R1, R2, R3, R4, R5 and R6 are as defined in claim 1, as insulin secretion stimulators. The invention also relates to the preparation and use of these quinoxalinone derivatives for the prophylaxis and/or treatment of diabetes and pathologies associated. Other preferred compounds are compounds of general formula (I), wherein R1, R2, R3, R4, R5 and R6 can be optionally substituted by one or more groups selected from Z.
Bicyclic Benzimidazole Compounds and Their Use as Metabotropic Glutamate Receptor Potentiators
申请人:Egle Ian
公开号:US20090192169A1
公开(公告)日:2009-07-30
Compounds of Formula I:
wherein A, B, D, L, R
1
, R
2
, R
3
, R
4
, m, and n are as defined for Formula I in the description. The invention also relates to processes for the preparation of the compounds and to new intermediates employed in the preparation, pharmaceutical compositions containing the compounds, and to the use of the compounds in therapy.
An easy one-step photocatalytic synthesis of 1-aryl-2-alkylbenzimidazoles by platinum loaded TiO2 nanoparticles under UV and solar light
作者:K. Selvam、M. Swaminathan
DOI:10.1016/j.tetlet.2011.04.090
日期:2011.6
One-potsynthesis of disubstituted benzimidazoles from N-substituted 2-nitroanilines or 1,2-diamines with 3–12 nm-sized platinum particles loaded on the TiO2 using solar and UV-A light is described. 1-Aryl-2-alkylbenzimidazoles from 2-nitrodiphenylamines are formed by combined redox photocatalyticreaction, condensation and catalytic dehydrogenation on Pt-TiO2. In case of diamines, this reaction is
Highly efficient one pot synthesis of benzimidazoles from 2-nitroaniline and PhSiH3 as reducing agent catalyzed by Pd/C as a heterogeneous catalyst
作者:Vishal V. Phatake、Bhalchandra M. Bhanage
DOI:10.1016/j.tetlet.2021.152940
日期:2021.3
for the synthesis of benzimidazole from o-nitroaniline in the presence of carbon dioxide atmosphere, PhSiH3 as a reducing agent catalyzed by Pd/C as a catalyst. Benzimidazoles have become the focus of organic chemists, as benzimidazole is an important intermediate in medicinal chemistry. We have developed more efficient route for the synthesisbenzimidazole and various substituted benzimidazoles have