New substituted naphthalene derivatives are melatonin 1 receptor binders useful e.g. to treat sleep disorders, stress, anxiety, schizophrenia, panic attacks, appetite disorders, obesity, insomnia, epilepsy, diabetes and Parkinson's disease

• Main Authors: ETTAOUSSI MOHAMED, SPEDDING MICHAEL, MILLAN MARK, BERTHELOT PASCAL, SABAOUNI AHMED, DELAGRANGE PHILIPPE, YOUS SAID, CAIGNARD DANIEL HENRI
• Format: Patent
• Language: English; French
• Published: 09.01.2009
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

Substituted naphthalene derivatives (I) and their enantiomers, diastereoisomers, or acid or base addition salts, are new. Substituted naphthalene derivatives of formula (I) and their enantiomers, diastereoisomers, or acid or base addition salts, are new. R 11-6C (halo)alkyl, 1-6C alkenyl, polyhalo1-6C alkyl, 3-8C cycloalkyl, cyclo(3-8C)alkyl(1-6C)alkyl, (hetero)aryl or 1-6C (hetero)arylalkyl, where aryl is phenyl, naphthyl or biphenyl, heteroaryl is mono or bicyclic aromatic group containing 1-3 heteroatom of O, S or N, and (hetero)aryl is optionally substituted by 1-3 group comprising 1-6C alkyl, 1-6C alkoxy, OH, carboxy, formyl, nitro, CN, halo(1-6C)alkyl, polyhalo1-6C alkyl, alkyloxycarbonyl or halo; and R 2F or 1-6C alkyl (substituted by one or more F), preferably F or fluoromethyl. Independent claims are included for the preparation of (I). [Image] ACTIVITY : Hypnotic; Tranquilizer; Antidepressant; Cardiovascular-Gen; Gastrointestinal-Gen; CNS-Gen; Muscular-Gen; Neuroleptic; Anorectic; Anticonvulsant; Antidiabetic; Antiparkinsonian; Nootropic; Antimigraine; Neuroprotective; Endocrine-Gen; Cytostatic; Dermatological; Vasotropic; Immunomodulator; Contraceptive; Analgesic. MECHANISM OF ACTION : Melatonin 1 receptor binder; Melatonin 2 receptor binder; 5-Hydroxytryptamine 2c receptor binder. The ability of (I) to bind melatonin 1 receptor was tested using 2-[ 125>I]-iodomelatonin radioligand. The result showed that inhibitory constant of N-[3-fluoro-2-(7-methoxy-1-naphthyl) propyl]acetamide was 0.1 nM. Composés de formule (I) : dans laquelle :R1 représente alkyle, alkényle, halogénoalkyle, polyhalogénoalkyle, cycloalkyle, cycloalkylalkyle, aryle, arylalkyle, hétéroaryle ou hétéroarylalkyle,R2 représente un atome de fluor ou un groupement alkyle substitué par un ou plusieurs atomes de fluor,Médicaments.