Abstract: The present invention relates to oxazolidinone derivatives of formula (I) wherein Y, R3 and R4 are as described in the description, to their preparation, to pharmaceutically acceptable salts thereof, and to their use as pharmaceuticals, to pharmaceutical compositions containing one or more compounds of formula (I), and especially to their use as orexin receptor antagonists.

Abstract: The present invention relates to thiazolidin-4-one and [1,3]-thiazinan-4-one compounds of formula (I) wherein X, Y, R3 and R4 are as described in the description, or pharmaceutically acceptable salts thereof, for the prevention or treatment of diseases related to the orexin system. The present invention also relates to novel thiazolidin-4-one compounds of formula (II) and their use as pharmaceuticals, pharmaceutical compositions containing one or more compounds of formula (II), and especially their use as orexin receptor antagonists.

Abstract: The invention relates to piperidine compounds of formula (I): wherein X—R1 represents —N(H)-pyrimidinyl, wherein said pyrimidinyl is unsubstituted or mono-substituted wherein the substituent is selected from (C1-4)alkyl or halogen, or X—R1 represents —NH—C(O)-heterocyclyl, wherein the heterocyclyl is selected from benzofuranyl and imidazo[2,1-b]-thiazolyl, wherein said heterocyclyl is unsubstituted or independently mono-, di- or tri-substituted wherein the substituents are independently selected from (C1-4)alkyl; A represents a phenyl- or thiazolyl-group, wherein the phenyl or thiazolyl is unsubstituted or mono-substituted with (C1-4)alkyl; B represents a phenyl-group, wherein the phenyl is unsubstituted or mono-, or di- substituted, wherein the substituents are independently selected from the group consisting of (C1-4)alkyl, (C1-4)alkoxy, trifluoromethyl, cyano and halogen; to pharmaceutically acceptable salts thereof, and to the use of such compounds use as medicaments, especially as orexin receptor ant

Abstract: The invention relates to 3-aza-bicyclo[3.3.0]octane derivatives of the formula (I) wherein R1, R2, R3, and A are as described in the description and their use as orexin receptor antagonists.

Abstract: The invention relates to novel trans-3-aza-bicyclo[3.1.0]hexane derivatives of formula (I), wherein A, B, n and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to novel tetrahydroisoquinoline derivatives and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including pharmaceutical compositions containing one or more of those compounds and their use as medicaments for the treatment or prevention of protozoal infections, such as especially malaria.

Abstract: The invention relates to 1,2-diamido-ethylene derivatives of the formula (I) wherein R1, R2, R3, and A are as described in the description and their use as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to novel bis-amide derivatives and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including pharmaceutical compositions containing one or more of those compounds and their use as medicaments for the treatment or prevention of protozoal infections, such as especially malaria.

Abstract: The invention relates to novel phenethylamide derivatives and their wherein A, B, R1, R2 and R3 are as described in the application, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to novel sulfonamide compounds of the formula (I) and their use as orexin receptor antagonists.

Abstract: The invention relates to novel azetidine compounds of formula (I), wherein R1, R2, and X are as described in the description and their use as orexin receptor antagonists.

Abstract: The invention relates to novel 2-aza-bicyclo[3.1.0]hexane derivatives of Formula (I) wherein A, B, n and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to thiazolidine derivatives of the formula (I) wherein A, B, and R1 are as described in the description, to salts, especially pharmaceutically acceptable salts, of such compounds and to their use as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to 5,6,7,8-tetrahydro-imidazo[1,5-a]pyrazine derivatives of formula (I) wherein R1, R2, R3, and R4 are as described n the description, to salts, especially pharmaceutically acceptable salts thereof, and to the use of such compounds as medicaments; especially as orexin receptor antagonists.

Abstract: The invention relates to tetrazole compounds of formula (I) wherein X, Y, Z, R1, R2 and R3 are as described in the description; to pharmaceutically acceptable salts thereof, and to the use of such compounds use as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to piperidine and pyrrolidine compounds of formula (I) wherein A, B, n and X are as described in the description; to pharmaceutically acceptable salts thereof, and to the use of such compounds use as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to novel 2-aza-bicyclo[2.2.1]heptane derivatives of formula (I), wherein A, B, n and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to 2-aza-bicyclo[3.3.0]octane derivatives of Formula (I) wherein A, B, and R1 are as described in the description, and to the use of such compounds, or of pharmaceutically acceptable salts of such compounds, as medicaments, especially as orexin receptor antagonists.

Abstract: The invention relates to novel pyrazolo-tetrahydropyridines compounds and their use as orexin receptor antagonists.

Abstract: The invention relates to novel 1,2,3,4-tetrahydroisoquinoline derivatives of formula (I) wherein R1, R2, R3 and X are as defined in the claims, and their use as active ingredients in the preparation of pharmaceutical compositions. The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more of those compounds and methods of treatment comprising administration of said compounds to a mammal.