COMPOUNDS ACTING AS SELECTIVE ANTAGONISTS OF HUMAN NK3 RECEPTOR AND THEIR APPLICATION AS DRUGS AND DIAGNOSTIC AGENTS

摘要

N-(3,4-dichlorophenyl-propyl)-piperidine derivs. of formula (I) and their salts are new. Ar = pyrid-2-yl or phenyl (opt. substd. by halo, methyl or (1-4C)alkoxy); R1 = methyl; R11 = H; or R1+R11 = -(CH2)3-; R2 = (1-7C)- alkoxy, acryloxy, acyl, allkoxycarbonyl, alkoxymethyl, acyloxymethyl or alkylamino-carbonyloxymethyl, or CN, -CH2OH, OH, -NR6R7, -NR3COR4, -NR3COOR8, -NR3SO2R9, -NR3CONR10R12, -CONR10R12, -CH2NR13R14, -CH2NR3COR4, -CH2NR3COOR8, -CH2NR3SO2R9 or -CH2NR3CONR10R12, or R2 forms a double bond between the C to which it is attached and the adjacent C in the piperidine ring; or CR2Ar = a gp. (i); R3 = H or (1-4C) alkyl; R4 = H, (1-7C)alkyl, phenyl, benzyl, pyridyl or (3-7C)cycloalkyl (opt. substd. by one or more methyl); or R3+R4 = -(CH2)n-; n = 3 or 4; T = methylene, carbonyl, -COO- or -CONR5-; A = a bond, methylene, ethylene, propylene or vinylene; or -T-A- = -SO2-; Z = phenyl (opt. substd. by one or more halo, (1-4C)alkyl or alkoxy, or nitro); R5 = H or (1-4C)alkyl; R6 = H or (1-7C)alkyl; R7 = H, (1-7C)alkyl, (3-7C)cycloalkylmethyl, benzyl or phenyl; or NR6R7 = azetidine, pyrrolidine, piperidine, morpholine, thiomorpholine or perhydroazepine; R8 = (1-7C)alkyl or phenyl; R9 = (1-7C)alkyl, or amino (opt. substd. by one or two (1-7C)alkyl), phenyl (opt. substd. by one or more (1-7C)- alkyl, alkoxy, alkoxycarbonyl or alkylcarbonyloxy, or halo, CF3, hydroxy, carboxy, cyano, nitro or amino (opt. substd. by one or two (1-7C)alkyl)); R10 = H or (1-7C)alkyl; R12 = H, (1-7C)alkyl, (3-7C) cycloalkyl or cycloalkylmethyl, hydroxy, (1-4C)alkoxy, benzyl or phenyl; or NR10R12 = a heterocyclic gp. as for NR6R7; R13 = H or (1-7C)alkyl; R14 = H, (1-7C)alkyl, (3-7C)cycloalkylmethyl or benzyl; with the provisos that: a) when Ar = phenyl, R2 = hydroxy and T-A-Z = benzoyl, then R1 is not methyl; b) when Ar = phenyl, R2 = -NH-CO-CH3 and T-A-Z = benzoyl or 3-methoxybenzyl then R1+R11 is not -(CH2)3-. Also claimed are the piperidine derivs. of formula (V) and their salts. R2' = -NR3COR4; R3, R4 are as defined except when R3 = H then R4 is not methyl; Y = H or a protective gp.. Also claimed is the starting material of formula (1') and its acid addn. salts, pref. the (+) isomer.