Tetrahydroquinolinones and their use as modulators of metabotropic glutamate receptors
申请人:Kauss Valerjans
公开号:US20090227582A1
公开(公告)日:2009-09-10
The invention relates to ethynyl-substituted tetrahydroquinolinone derivatives as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are group I mGluR modulators and are therefore useful for the control and prevention of acute and/or chronic neurological disorders.
[EN] TETRAHYDROQUINOLINONES AND THEIR USE AS ANTAGONISTS OF METABOTROPIC GLUTAMATE RECEPTORS<br/>[FR] TETRAHYDROQUINOLINONES ET LEUR UTILISATION COMME ANTAGONISTES DES RECEPTEURS DE GLUTAMATE METABOTROPIQUE
申请人:MERZ PHARMA GMBH & CO KGAA
公开号:WO2005082856A2
公开(公告)日:2005-09-09
The invention relates to tetrahydroquinolinone derivatives as well as their pharmaceutically acceptable salts. The invention further relates to a process for the preparation of such compounds. The compounds of the invention are group I mGluR antagonists and are therefore useful for the control and prevention of acute and/or chronic neurological disorders.
Pd-catalyzed site selective C–H acetoxylation of aryl/heteroaryl/thiophenyl tethered dihydroquinolinones
Described herein is an efficient protocol for the site selective oxidative CâH activation/acetoxylation of a series of 2-aryl/heteroaryl/thiophenyl tethered dihydroquinolinones using palladium acetate as the catalyst and iodobenzene diacetate as an oxidant. All these transformations progressed well at less sterically encumbered and electronically favourable CâH bonds to give corresponding ortho-acetoxylated derivatives in good yields. Further, acetoxylation of thiophenyl embedded dihydroquinolinones resulted in single regioisomers, acetoxylated at the C-2 position on the thiophenyl moiety. However, when the C-2 position on the thiophene unit was blocked, the acetoxy group was exclusively installed at the C-4 position. Further, we noticed that acetoxylation of dihydroquinolin-5(6H)-one-oxime did not alter ligand preferentiality to give the ortho-acetoxylated product.