The present invention relates to compounds according to formula (I)
and pharmaceutically acceptable salts or esters thereof, wherein R
1
to R
7
have the significance given herein. The compounds are activators of AMP-activated protein kinase (AMPK) and are useful in the treatment or prophylaxis of diseases that are related to AMPK regulation, such as obesity, dyslipidemia, hyperglycemia, type 1 or type 2 diabetes and cancers.
[EN] TETRAHYDROQUINOLINE DERIVATIVES USED AS AMPK ACTIVATORS<br/>[FR] DÉRIVÉS DE TÉTRAHYDROQUINOLINE UTILISÉS EN TANT QU'ACTIVATEURS D'AMPK
申请人:HOFFMANN LA ROCHE
公开号:WO2012052372A1
公开(公告)日:2012-04-26
A compound of formula (I), or a pharmaceutically acceptable salt or ester thereof, wherein R1 to R7 have the significance given in claim 1, can be used as a medicament.
Reductive heterocyclizations via indium–iodine-promoted conversion of 2-nitroaryl imines or 2-nitroarenes to 2,3-diaryl-substituted indazoles
作者:Gil Hwan Ahn、Jung June Lee、Young Moo Jun、Byung Min Lee、Byeong Hyo Kim
DOI:10.1039/b707240f
日期:——
N-(2-nitrobenzylidene)anilines produced mixtures of 2,1-benzisoxazoles and 3-anilino-2-aryl-2H-indazoles in the presence of indium and iodine in MeOH, N-(2-nitrobenzylidene)anilines were transformed into 3-anilino-2-aryl-2H-indazoles as the predominant major product through the change of the solvent from protic MeOH to aprotic THF. In an indium-mediated one-pot reductive reaction, 2-benzaldehydes and anilines in THF
series of Schiff bases in the condensationreaction between benzaldehydes and anilines, in the absence of solvent. Benzaldehydes and anilines, containing either electron‐withdrawing or electron‐releasing groups, were assessed to identify any substituent effect on the formation of the Schiff bases. This methodology is characterized by ease of set‐up and work‐up, and the reaction yields were comparable with
Optimization of an old route leads very easily, in four steps, to methyl 1,3-dihydro-2H-pyrrolo[3,4-b]quinoline-2-carboxylate in 45% yield from commercial starting materials. This procedure can be compared to recently described methods whose yields were only 23-28% and required five to seven steps from advanced intermediates and chromatographic purifications. Moreover, using this method, the title compound can now be obtained in large quantities.