PIPERAZINE THIAZOLE DERIVATIVES USEFUL IN THE TREATMENT OF TAUOPATHIES SUCH AS ALZHEIMER'S DISEASE

摘要

The present invention relates to a compound of formula (IA), wherein G1 is lower alkyl; lower alkyl substituted by one or more halogens; cycloalkyl; tetrahydropyran-4-yl; phenethyl; phenethyl substituted by one or more halogens; phenoxymethyl; phenoxymethyl substituted by one or more halogens; benzyloxyethyl; benzyloxy-ethyl substituted by one or more halogens; or is —NR2R3; R2 is hydrogen or lower alkyl; R3 is lower alkyl; tetrahydropyran-4-yl; —CH2-cycloalkyl; or cycloalkyl optionally substituted by lower alkyl substituted by one or more halogens; or R2 and R3 form together with the N-atom to which they are attached a heterocycloalkyl group with 4 or 5 carbon atoms, which is optionally substituted by one or more substituents selected from halogen; or lower alkyl substituted by one or more halogens; X is —CH2— or —(CH2)2—; Ar is phenyl or pyridinyl; R4 is halogen; lower alkyl; lower alkyl substituted by one or more halogens; or lower alkoxy; n is 1 or 2; or to a pharmaceutically active salt thereof, to a stereoisomeric form, including an individual diastereoisomer or enantiomer of the compound of formula (IA) as well as to a racemic or non-racemic mixture thereof. The present invention also relates to the use of a compound of formula (IA) for treating certain neurodegenerative disorders characterized by cytotoxic TAU misfolding and/or aggregation.;

主权项

1. A compound of formula IA or a pharmaceutically active salt thereof; to a stereoisomeric form, including an individual diastereoisomer or enantiomer of the compound of formula (I) as well as to a racemic or non-racemic mixture thereof; wherein G1 is lower alkyl; lower alkyl substituted by one or more halogens; cycloalkyl; tetrahydropyran-4-yl; phenethyl; phenethyl substituted by one or more halogens; phenoxymethyl; phenoxymethyl substituted by one or more halogens; benzyloxy-ethyl; benzyloxy-ethyl substituted by one or more halogens; or is —NR2R3; R2 is hydrogen or lower alkyl; R3 is lower alkyl, tetrahydropyran-4-yl —CH2-cycloalkyl or cycloalkyl optionally substituted by lower alkyl substituted by one or more halogens; or R2 and R3 form together with the N-atom to which they are attached a heterocycloalkyl group with 4 or 5 carbon atoms, which is optionally substituted by one or more substituents selected from halogen or lower alkyl substituted by one or more halogens; X is —CH2— or —(CH2)2—; Ar is phenyl or pyridinyl; R4 is halogen; lower alkyl; lower alkyl substituted by one or more halogens; or lower alkoxy; n is 1 or 2; with the proviso that said compound is not: 5-(4-(3-fluorobenzyl)piperazin-1-yl)-3-methyl-1,2,4-thiadiazole and 3-isopropyl-5-(4-(3-(trifluoromethyl)benzyl)piperazin-1-yl)-1,2,4-thiadiazole.