Abstract: The invention relates to a catalyst molded body, which is produced by deforming a mixture of a metal oxide and a special graphite. The invention further relates to a method for producing the corresponding catalyst molded bodies and to the use of the catalyst molded bodies for catalytic reactions in which hydrogen acts as a reaction reactant or reaction product, in particular hydrogenation, hydrogenolysis, and dehydrogenation reactions. The catalysts are characterized by an improvement in the activity and selectivity in particular in hydrogenation, hydrogenolysis, and dehydrogenation reactions, said improvement being achieved by adding special graphites.

Abstract: The present invention relates to ethynyl derivatives of formula I wherein Y is N or CH 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 metabotropic glutamate receptor antagonists (negative allosteric modulators) for use in the treatment of anxiety and pain, depression, Fragile-X syndrome, autism spectrum disorders, Parkinson's disease, and gastroesophageal reflux disease (GERD).

Abstract: The present invention relates to ethynyl derivatives of formula I wherein Y is N or CH R1 is fluoro or chloro 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 metabotropic glutamate receptor antagonists (negative allosteric modulators) for use in the treatment of anxiety and pain, depression, Fragile-X syndrom, autism spectrum disorders, Parkinson's disease, and gastroesophageal reflux disease (GERD).

Abstract: The present invention relates to ethynyl derivatives of formula I wherein Y is N or CH 1 is fluoro or chloro R2 is hydrogen or methyl 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 metabotropic glutamate receptor antagonists (negative allosteric modulators) for use in the treatment of anxiety and pain, depression, Fragile-X syndrom, autism spectrum disorders, Parkinson's disease, and gastroesophageal reflux disease (GERD).

Abstract: The present invention relates to ethynyl derivatives of formula I wherein R1 is phenyl, 3-fluorophenyl, 4-fluorophenyl or 2,5-di-fluorophenyl; or to a pharmaceutically acceptable acid addition salt, in enantiomerically pure form with the absolute configuration as shown in formula I. It has now surprisingly been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5) which show advantageous biochemical-, physicochemical- and pharmacodynamic-properties compared to compounds of prior art.

Abstract: The present invention relates to ethynyl derivatives of formula I wherein R1 is hydrogen or halogen; R2 is C1-3-alkyl or —(CH2)n—O—CH3; n is 2 or 3; m is 1 or 2; 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 been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5) with improved properties for the treatment of schizophrenia, cognitive diseases, fragile X syndrome or autism.

Abstract: The present invention relates to ethynyl derivatives of formula I wherein R1 is phenyl, which is optionally substituted by 1-2 halogen atoms; selected from fluorine or chlorine; or to a pharmaceutically acceptable acid addition salt in enantiomerically pure form. It has been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).

Abstract: The present invention relates to ethynyl derivatives of formula I X, O, R1, R2, R3, R3?, R4, R4?, R5, R6, R6?, m, and n are as defined hereinor 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). They can be used for the treatment of schizophrenia or cognitive disorders.

Abstract: The present invention relates to ethynyl derivatives of formula I wherein U, V, Y, R1, R2, R2?, R3, R3? and R8 are described herein. It has been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).

Abstract: The present invention relates to ethynyl derivatives of formula I X, G, R1, R2, R3, R3?, R4, R4?, R5, R6, R6?, m, and n 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). They can be used for the treatment of schizophrenia or cognitive disorders.

Abstract: The present invention relates to ethynyl compounds of formula wherein X, Y, Z, and R4 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.

Abstract: The present invention relates to ethynyl derivatives of formula I wherein Y is N or C—R3; R3 is hydrogen, methyl, halogen or nitrile; R1 is phenyl or pyridinyl, each of which is optionally substituted by halogen, lower alkyl or lower alkoxy; R2/R2? are each independently hydrogen, lower alkyl or lower alkyl substituted by halogen, or R2 and R2? together with the N-atom to which they are attached form a morpholine ring, a piperidine ring or an azetidine ring, each of which is unsubstituted or substituted one or more substituents selected from lower alkoxy, halogen, hydroxy and methyl; R4/R4? are each independently hydrogen or lower alkyl, or R4 and R4? together form a C3-5 cycloalkyl-, tetrahydrofuran- or an oxetane-ring; 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.

Abstract: The present invention relates to ethynyl compounds of formula I-C1 wherein R1, R2, R2?, R3, R3?, R6, U, V and W 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, which are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).

Abstract: The present invention relates to phenylethynyl compounds of formula I wherein R1, R2, X, L, R3, R4, R4?, cyc, and n are as defined in the specification and claims and 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). They are useful for the treatment of schizophrenia or cognitive diseases.

Abstract: The present invention relates to ethynyl compounds of formula wherein X, Y, Z, and R4 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.

Abstract: 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).

Abstract: 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).

Abstract: The present invention relates to ethynyl compounds of formula wherein X, Y, Z, and R4 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.

Abstract: 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).

Abstract: The present invention relates to ethynyl derivatives of formula I wherein U, V, W, Y, R, R1, R2, R3 and R3? are as described herein. It has been found that the compounds of general formula I are allosteric modulators of the metabotropic glutamate receptor subtype 5 (mGluR5).