PIPERIDINE DERIVATIVES AS NK3 RECEPTOR ANTAGONISTS

摘要

The present invention relates to a compounds of formula (I) wherein Ar1 is aryl or a six membered heteroaryl; Ar2 is aryl or a six membered heteroaryl; R1 is hydrogen, halogen, lower alkyl, lower alkoxy or lower alkyl substituted by halogen; R2 is hydrogen, halogen, lower alkyl, lower alkyl substituted by halogen or cyano; R3 is hydrogen or lower alkyl; R4 is hydrogen, lower alkyl, phenyl, optionally substituted by halogen, or is a five membered heteroaryl, optionally substituted by lower alkyl, or is aryl optionally substituted by halogen; is a six membered heterocyclic group, wherein X is -N(SO2CH3); R6 is hydrogen; Y is -N(R7' )- R7' is a 6-membered heteroaryl group, optionally substituted by cyano or C(O)-cycloalkyl, wherein the cycloalkyl group is optionally substituted by lower alkyl, n is 1; m is 1; o is1; p is 1; s is 0; t is 1; u is 1; or to a pharmaceutically active salt, a racemic mixture, an enantiomer, an optical isomer or a tautomeric form thereof. It has been found that the present compounds are high potential NK-3 receptor antagonist for the treatment of depression, pain, psychosis, Parkinson's disease, schizophrenia anxiety and attention deficit hyperactivity disorder (ADHD).