[EN] AMINO ACID DERIVATIVES AS INHIBITORS OF MAMMALIAN SODIUM CHANNELS<br/>[FR] DERIVES D'ACIDES AMINES EN TANT QU'INHIBITEURS DES CANAUX SODIQUES DE MAMMIFERES
申请人:IONIX PHARMACEUTICALS LTD
公开号:WO2004087125A1
公开(公告)日:2004-10-14
Use of a compound of formula (I), or a pharmaceutically acceptable salt thereof, in the manufacture of a medicament for use in the treatment or prevention of a condition selected from chronic and acute pain, tinnitus, bowel disorders, bladder dysfunctions and demyelinating diseases, Formula (I) wherein: - R1 is Cl-C6 alkyl, C6-C10 aryl, a 5- to 10- membered heteroaryl group, a 5- to 10- membered heterocyclyl group or a C3-C6 carbocyclyl group; each R2 is the same or different and represents Cl-C6 alkyl, halogen, Cl-C6 alkoxy, Cl-C6 alkythio, hydroxy, nitro, cyano, amino, (Cl-C6 alkyl)amino or di-( Cl-C6 alkyl)amino; - R3 represents hydrogen, Cl-C6 alkyl, or together with R4 represents a C2-C4 alkylene group; - R4 is hydrogen, Cl-C6 alkyl, C6-C10 aryl, C3-C6 carbocyclyl, a 5- to 10membered heteroaryl group, a 5- to 10- membered heterocyclyl group, -( Cl-C6 alkyl)-(C6-C10 aryl), -(C1-C6 alkyl)-(C3-C6 carbocyclyl), -(C1-C6 alkyl)-(5-to 10- membered heteroaryl), - ( Cl-C6 alkyl)-(5- to 10- membered heterocyclyl) or, together with R3 represents a C2-C4 alkylene group; - R5 and R6 are the same or different and each represent hydrogen or a Cl-C6 alkyl group; - n is 0,1, 2, 3 or 4; X1 represents a direct bond or a methylene group; and X2 represents a -CH2-, -CO-, -SO- or -S(O)2- group, wherein: the alkyl and alkylene groups and moieties in the substituents R1 to R6 and X, are unsubstituted or are substituted by 1, 2 or 3 substituents which are the same or different and are selected from hydroxy, amino, C1-C4 alkoxy, C1-C4 alkylthio, C1-C4 alkylamino and di(C1-C4 alkyl)amino substituents; and the aryl, heteroaryl, heterocyclyl and carbocyclyl groups and moieties in the substituents R1 and R4 are unsubstituted or are substituted by 1, 2 or 3 substituents which are the same or different and are selected from halogen, Cl-C6 alkyl, Cl-C6 alkoxy, Cl-C6 alkylthio, hydroxy, amino, Cl-C6 alkylamino, di-( Cl-C6 alkyl)amino, Cl-C6 haloalkyl, Cl-C6 haloalkoxy and Cl-C6 haloalkylthio substituents. provided that, when n is 1, 2, 3 or 4, R4 is other than hydrogen and when n is 0, X2 is -CH2- and R1 is an aryl or heteroaryl group, then either: (a) R, is a phenyl group which carries at least one -SCF3 substituent or is a thienyl group which carries at least one chloro substituent; (d) R1 is a phenyl group which carries at least one -CF3 substituent or at least two halogen substituents; or (e) R4 is benzyl or hydroxybenzyl and R1 is a phenyl group which carries a fluorine or -OCH3 substituent.