Abstract:
PROBLEM TO BE SOLVED: To provide a new 1,1- and 1,2-disubstituted cyclopropane compound having specific interaction with central nicotinic receptors of type α4β2. SOLUTION: This compound is represented by formula (1), and concretely exemplified by 2-[1-(dimethylamino)cyclopropyl] ethylmethylcarbamate. The compound is useful for treatment of deficiencies of memory associated with cerebral ageing and neurodegenerative diseases.
Abstract:
The invention concerns compounds of formula (I), wherein: n represents an integer between 1 and 6 inclusively; R 1 and R 2 represent a hydrogen atom a (C 1 -C 6 ) alkyl or (C 1 -C 6 ) arylalkyl group; R 3 and R 4 represent a hydrogen atom, a (C 1 -C 6 ) alkyl group; R 5 and R 6 represent a hydrogen atom, a (C 1 -C 6 ) alkyl group, halogen, hydroxy, (C 1 -C 6 ) alkoxy, cyano, nitro, (C 2 -C 6 ) acyl, (C 1 -C 6 ) alkoxycarbonyl, (C 1 -C 6 ) trihalogenoalkyl, (C 1 -C 6 ) trihalogenoalkoxy or amino optionally substituted; R 7 represents a hydrogen atom, a (C 1 -C 6 ) alkyl group or arylalkyl. The invention is useful for preparing medicines.
Abstract:
Compounds of formula in which R1, R2, R3, R4, R5, Ra, Rb, Rc, Rd, Re, X, Y and Z are provided in the description, method for its production, pharmaceutical compositions on its base and use thereof as receptors of α4ß2 specific nicotinic ligands, for treatment of abnormalities of memory and neurodegenerative diseases related to cerebral senility. Tables: 1
Abstract:
Compounds of formula (I): wherein: n represents an integer of from 1 to 6 inclusive, X represents an oxygen atom or an NR6 group, Y represents a carbon atom or a nitrogen atom, Z represents a carbon atom or a nitrogen atom, R1 and R2 represent a hydrogen atom or an alkyl or arylalkyl group, R3 and R4 represent a hydrogen atom or an alkyl group, R5 represents a hydrogen atom or an alkyl, halogen, hydroxy, alkoxy, cyano, nitro, acyl, alkoxycarbonyl, trihaloalkyl, trihaloalkoxy or optionally substituted amino group, R6 represents a hydrogen atom or an alkyl or arylalkyl group, Ra, Rb, Rc, Rd and Re are as defined in the description. Medicinal products containing the same which are useful as specific nicotinic ligands of α4&bgr;2 receptors.
Abstract:
Compuestos de fórmula (I): (Ver fórmula) donde: n representa un número entero comprendido entre 1 y 6, ambos inclusive, R1 y R2, idénticos o diferentes, independientemente uno del otro, representan un átomo de hidrógeno o un grupo alquilo(C1-C6) lineal o ramificado o arilalquilo (C1-C6) lineal o ramificado, R3 y R4, idénticos o diferentes, independientemente uno del otro, representan un átomo de hidrógeno o un grupo alquilo(C1-C6) lineal o ramificado, entendiéndose que al menos uno de los dos grupos R3 ó R4 representa un grupo alquilo(C1-C6) lineal o ramificado, R5 y R6, idénticos o diferentes, independientemente uno del otro, representan un átomo de hidrógeno o un grupo alquilo(C1-C6) lineal o ramificado, un halógeno, hidroxilo, alcoxi(C1-C6) lineal o ramificado, ciano, nitro, acilo(C2-C6) lineal o ramificado, alcoxicarbonilo(C1-C6) lineal o ramificado, trihaloalquilo(C1-C6) lineal o ramificado, trihaloalcoxi( C1-C6) lineal o ramificado o amino, eventualmente sustituido con uno o dos grupos alquilo(C1-C6) lineales o ramificados, por grupo arilo se entiende un grupo fenilo, bifenilo, naftilo, dihidronaftilo, tetrahidronaftilo, indanilo e indenilo, estando cada uno de estos grupos eventualmente sustituido con uno o varios grupos, idénticos o diferentes, seleccionados de entre halógeno, alquilo(C1-C6) lineal o ramificado, hidroxilo, ciano, nitro, alcoxi(C1-C6) lineal o ramificado, acilo(C2-C7) lineal o ramificado, alcoxicarbonilo(C1-C6) lineal o ramificado, trihaloalquilo(C1-C6) lineal o ramificado, trihaloalcoxi(C1-C6) lineal o ramificado y amino, eventualmente sustituido con uno o dos grupos alquilo(C1-C6) lineales o ramificados, sus enantiómeros, diastereoisómeros, así como sus sales de adición de un ácido o de una base farmacéuticamente aceptables.
Abstract:
Azabicyclic derivatives (I) are new. Azabicyclic derivatives of formula (I) and their enantiomers, diastereoisomers or acid or base addition salts are new. ALK : alkylene, 2-6C alkenylene (contains 1-3 double bonds) or 2-6C alkynylene (contains 1-3 triple bonds); Y, Y 1> : H, halo, alkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, SH, OH, perhaloalkyl, nitro, amino (optionally substituted by one or two alkyl), acyl of formula C(O)R1a, aminocarbonyl (optionally N-substituted by one or two alkyl), acylamino (optionally N-substituted by alkyl), alkoxycarbonyl, COOH, sulfo or CN; R1a : H or alkyl; X : O, S or NR; R : H or alkyl; W 1> : CN (only when X = O or NR), N(R 1>)Z 1>R 2>or Z 1>NR 1>R 2>; Z 1> : C(O), C(S), C(NR 4>), C(O)N(R 3>), C(S)N(R 3>), C(NR 4>)N(R 3>), C(O)O, C(S)O or S(O) r; r : 1 or 2; Z 2> : C(O), C(S), C(NR 4>), S(O) ror bond; R 1>-R 4> : alkyl, 3-6C alkenyl (contains 1-3 double bonds), 3-6C alkynyl (contains 1-3 triple bonds), cycloalkyl, heterocycloalkyl, aryl or heteroaryl (all optionally substituted), alkoxy or H; or R 1>+R 2>or R 2>+R 3> : heterocyclyl or heteroaryl (both optionally substituted); m, n : 0-2, where the sum of m+n is 2 or 3; and p, q : 0-2. alkyl = 1-6C unless specified; perhaloalkyl = 1-3C with 1-7 halogen; aryl = phenyl, naphthyl, indanyl, indenyl, dihydronaphthyl or tetrahydronaphthyl; cycloalkyl = 3-11 membered mono- or bi-cyclic ring system, optionally with 1 or 2 unsaturations; heterocyclyl = 4-11 membered mono- or bicyclic ring system optionally with 1 or 2 unsaturations and/or 1-4 heteroatoms from N, O and/or S; heteroaryl = 5-11 membered mono- or bicyclic ring system with 1-4 heteroatoms from N, O and/or S; for cycloalkyl, aryl, heteroaryl or heterocyclyl, 'optionally substituted' comprises 1-3 substituents from alkyl, alkoxy, alkylthio, alkylsulfinyl, alkylsulfonyl, halogen, OH, SH, perhaloalkyl, nitro, amino or aminocarbonyl (optionally substituted by 1 or 2 alkyl), C(O)R1a, NHC(O)R1a (optionally N-substituted by alkyl), alkoxycarbonyl, COOH, sulfo or CN; or aryl, heteroaryl, cycloalkyl, heterocyclyl or benzyl with one or two optional oxo substituents where possible; for alkyl, alkenyl or alkynyl, 'optionally substituted ' comprises one or two of alkylthio, alkylsulfinyl, alkylsulfonyl, alkoxy, halogen, OH, SH, nitro, amino, C(O)R1a, aminocarbonyl, NHC(O)R1a, alkoxycarbonyl, COOH, sulfo, CN or aryl, heteroaryl, cycloalkyl, heterocylyl or aryloxy (all optionally substituted). An independent claim is included for the preparation of (I). [Image] ACTIVITY : Nootropic; Neuroprotective; Anticonvulsant; Tranquilizer; Anorectic; Analgesic. MECHANISM OF ACTION : Histamine (H3) activator. The ability of (I) to activate histamine was tested in mice. The results showed that 4-(3-hexahydrocyclopenta[c]-pyrrol-2(1H)-ylpropoxy)benzonitrile oxalate exhibited the percentage increase of N-methylhistamine in brain of 92%.