[EN] ARYLSULFONAMIDE DERIVATIVES AS MGLUR4 NEGATIVE ALLOSTERIC MODULATORS [FR] DÉRIVÉS D'ARYLSULFONAMIDE EN TANT QUE MODULATEURS ALLOSTÉRIQUES NÉGATIFS DE MGLUR4
The present invention relates to ethynyl compounds of formula I
wherein
R1, R2, R2′, R3, R3′, R4, R4′, U, V, W, Y, m, and n are as defined herein and to a pharmaceutically acceptable acid addition salts, to a racemic mixtures, or to its corresponding enantiomers and/or optical isomers and/or stereoisomers thereof. Compounds of formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).
The present invention relates to ethynyl derivatives of formula (I) as allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5). The variables in formula (I) are defined in the specification.
Regioselective ortholithiation of 2-, 3-, and 4-halopyridines is achieved with lithium diisopropylamide (−78°, tetrahydrofuran) to afford, upon quenching with electrophilic reagents, 2,3- and 3,4-disubstituted pyridines in good to excellent yield.
The present invention relates to ethynyl derivatives of formula (I) wherein X is N or C-R1; Y is N or C-R2; Z is CH or N; R4 is a 6-membered aromatic substituent containing 0, 1 or 2 nitrogen atoms, optionally substituted by 1 to 3 groups, selected from halogen, lower alkyl, lower alkoxy or NRR'; R1 is hydrogen, lower alkyl, lower alkoxy, hydroxy, lower hydroxyalkyl, lower cycloalkyl or is heterocycloalkyl optionally substituted with hydroxy or alkoxy; R2 is hydrogen, CN, lower alkyl or heterocycloalkyl; R and R' are independently from each other hydrogen or lower alkyl; or to a pharmaceutically acceptable salt or acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer and/or stereoisomer thereof. It has now surprisingly been found that the compounds of general formula (I) are positive allosteric modulators (PAM) of the metabotropic glutamate receptor subtype 5 (mGluR5) and they are therefore useful for the treatment of diseases related to this receptor.
ETHYNYL COMPOUNDS USEFUL FOR TREATMENT OF CNS DISORDERS
申请人:Green Luke
公开号:US20110152257A1
公开(公告)日:2011-06-23
The present invention relates to ethynyl compounds of formula
wherein X, Y, Z, and R
4
are as defined herein
or to a pharmaceutically acceptable salt or acid addition salt, to a racemic mixture, or to its corresponding enantiomer and/or optical isomer and/or stereoisomer thereof. Compounds of formula I are positive allosteric modulators (PAM) of the metabotropic glutamate receptor subtype 5 (mGluR5) and they are therefore useful for the treatment of diseases related to this receptor.