1H-4(5)-substituted imidazole derivatives, their preparation and their use as histamine H3 receptor ligands
申请人:James Black Foundation Limited
公开号:US06355665B1
公开(公告)日:2002-03-12
A compound of the formula
wherein R2 is an optionally substituted Cz to Cg alkylene or alkylene chain; R3 is C2 to C15 optionally substituted hydrocarbyl; X is a bond or —NR4—, wherein R4 is hydrogen or non-aromatic C1 to C5 optionally substituted hydrocarbyl, or aryl(C1 to C3)alkyl, or a pharmaceutically acceptable salt thereof.
A method of modifing histamine activity in a patient comprising administering to said patient a pharmaceutical composition containing an effective amount of a compound of formula
wherein R1 is selected from C1 to C6 alkyl, C1 to C6 alkoxy, C1 to C6 alkylthio, carboxy, carboxy(C1 to C6)alkyl, formyl, C1 to C6 alkylcarbonyl, C1 to C6 alkylcarbonylalkoxy, nitro, trihalomethyl, hydroxy, amino, C1 to C6 alkylcarbonylalkoxy, nitro, trihalomethyl, hydroxy, amino, C1 to C6 alkylamino, di(C1 to C6 alkyl)amino, aryl, C1 to C6 alkylaryl, halo, sulfamoyl and cyano; R2 is optionally substituted C2 to C20 hydrocarbylene, in which one or more hydrogen atoms may be replaced by halogen atoms and up to 6 carbon atoms may be replaced by oxygen or nitrogen atoms, R2 being in the form of an optionally substituted C2 to C8 alkylene or alkenylene chain; R3 is hydrogen or C1 to C15 optionally substituted hydrocarbyl; X is a bond or —NR4—; and a is from 0 to 2, or a pharmaceutically acceptable salt thereof.
该化合物的化学式中,R2是一个可选取代的Cz到Cg烷基或烷基链;R3是C2到C15可选取代的烃基;X是一个键或-NR4-,其中R4是氢或非芳香C1到C5可选取代的烃基,或芳基(C1到C3)烷基,或其药学上可接受的盐。一种调节组胺在患者体内活性的方法,包括向该患者投予含有一定量该化合物的药物组合物,该化合物的化学式中,R1选自C1到C6烷基,C1到C6烷氧基,C1到C6烷硫基,羧基,羧基(C1到C6)烷基,甲酰基,C1到C6烷基羰基,C1到C6烷基羰基烷氧基,硝基,三卤甲基,羟基,氨基,C1到C6烷基羰基烷氧基,硝基,三卤甲基,羟基,氨基,C1到C6烷基氨基,二(C1到C6烷基)氨基,芳基,C1到C6烷基芳基,卤素,磺酰胺和氰基;R2是可选取代的C2到C20烃基,其中一个或多个氢原子可被卤素原子取代,最多6个碳原子可被氧原子或氮原子取代,R2以可选取代的C2到C8烷基或烯基链的形式存在;R3是氢或C1到C15可选取代的烃基;X是一个键或-NR4-;a为0到2,或其药学上可接受的盐。