4,5-二氯-2-甲基哒嗪-3-酮 、 2-甲基咪唑 在
二氯甲烷 、 甲醇 作用下,
以
1,4-二氧六环 为溶剂,
反应 16.0h,
以to yield 3.33 g (14.82 mmol, 27%) of the title compound as a white crystalline solid, MS的产率得到4-chloro-2-methyl-5-(2-methyl-imidazol-1-yl)-2H-pyridazin-3-one
The present invention relates to imidazole derivatives of the general formula
wherein R
1
, R
2
, R
3
, and R
4
are as defined in the specification and to pharmaceutically acceptable salts thereof. Compounds of formula I are metabotropic glutamate receptor antagonists. They can be used in the treatment or prevention of mGluR5 receptor mediated disorders.
[EN] IMIDAZOLE DERIVATIVES AS MGLUR5 ANTAGONISTS<br/>[FR] DÉRIVÉS D'IMIDAZOLE EN TANT QU'ANTAGONISTES DE MGLUR5
申请人:HOFFMANN LA ROCHE
公开号:WO2011006910A1
公开(公告)日:2011-01-20
The present invention relates to imidazole derivatives of the general formula (I) wherein R1 signifies halogen, lower alkyl or lower alkoxy; R2 signifies lower alkyl, lower hydro xyalkyl or lower alkoxyalkyl; R3 signifies hydrogen, lower alkyl, lower hydroxyalkyl or alkoxyalkyl; Q signifies either -N= or -CH=; R4 is a group of formula IIa or lIb (formula IIa and IIb) wherein X, Y and Z independently are -CH= or -N=, and whereby only one of X or Y can be a nitrogen atom; R5 and R6 independently are hydrogen, lower alkyl, lower hydroxyalkyl, lower alkoxyalkyl, -(CH2)m-(CO)O-lower alkyl, -(CH2)m-S(O)2-lower alkyl, -(CH2)m-C(O)-NR'R" and where m = 0-3 and R' and R'' are independently hydrogen or lower alkyl; as well as to pharmaceutically acceptable salts thereof. It has now surprisingly been found that the compounds of general formula (I) are metabotropic glutamate receptor antagonists. They can be used in the treatment or prevention of mGluR5 receptor mediated disorders.
The present invention relates to imidazole derivatives of the general formula
wherein R1, R2, R3, and R4 are as defined in the specification and to pharmaceutically acceptable salts thereof. Compounds of formula I are metabotropic glutamate receptor antagonists. They can be used in the treatment or prevention of mGluR5 receptor mediated disorders.