[EN] PYRAZOLIDIN-3-ONE DERIVATIVES<br/>[FR] DÉRIVÉS DE PYRAZOLIDINE-3-ONE
申请人:HOFFMANN LA ROCHE
公开号:WO2012146552A1
公开(公告)日:2012-11-01
The present invention relates to ethynyl derivatives of formula I wherein X is N or CH; G is N or CH; with the proviso that maximum one of X or G can be nitrogen; R1 is phenyl or pyridyl, which are optionally substituted by halogen, lower alkyl or lower alkoxy; R2 is hydrogen, lower alkyl or may form together with R 4 a C3-C6-cycloalkyl; R3/R3'/R4/R4' are independently from each other hydrogen, lower alkyl or CF3; or to a pharmaceutically acceptable 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).
The present invention relates to ethynyl derivatives of formula I
wherein G, X, R1, R2, R3, R3′, R4, and R4′ are as defined herein
or to a pharmaceutically acceptable 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).
γ,δ-Unsaturated β-Diketones by Acylation of Ketones
作者:Alan R. Katritzky、Nabin K. Meher、Sandeep K. Singh
DOI:10.1021/jo051087f
日期:2005.9.1
[GRAPHICS]gamma,delta-Unsaturated beta-diketones have been prepared by the acylation of ketones with N-acylbenzotriazoles of various aliphatic and aromatic alpha,beta-unsaturated carboxylic acids.
PYRAZOLIDIN-3-ONE DERIVATIVES
申请人:Jaeschke Georg
公开号:US20120277243A1
公开(公告)日:2012-11-01
The present invention relates to ethynyl derivatives of formula I
wherein G, X, R
1
, R
2
, R
3
, R
3′
, R
4
, and R
4′
are as defined herein
or to a pharmaceutically acceptable 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).