申请人:Eisai Co., Ltd.
公开号:EP1468684A1
公开(公告)日:2004-10-20
The present invention provides an indanone derivative and an excellent sigma receptor binding agent comprising an indanone derivative. More specifically, it provides a sigma receptor binding agent comprising an indanone derivative represented by the following formula, a pharmacologically acceptable salt thereof or a hydrate of them.
In the formula (I), R1, R2, R3 and R4 are the same as or different from each other and each represents hydrogen atom, a halogen atom, hydroxyl group, nitrile group, a C1-6 alkyl group which may be substituted, a cycloalkyl group having three to eight carbon atoms which may be substituted, a C1-6 alkoxy group which may be substituted, a cycloalkoxy group having three to eight carbon atoms which may be substituted, an acyl group having one to six carbon atoms which may be substituted, a C1-6 alkoxycarbonyl group which may be substituted, a C1-6 alkylaminocarbonyloxy group which may be substituted, a di(C1-6 alkyl)aminocarbonyloxy group which may be substituted, nitro group, an amino group which may be substituted, an amido group which may be substituted, mercapto group or a thio-C1-6 alkoxy group which may be substituted, and further R1 with R2, R2 with R3, or R3 with R4 may together form an aliphatic ring, an aromatic ring, a heterocyclic ring or an alkylenedioxy ring; the partial structure:
represents a group represented by >CH-CH2-, >C=CH- or >C(-R7)-CH2-; m represents an integer of 0 or 1 to 5; and R5 represents hydrogen atom, a C1-6 alkyl group which may be substituted, a C2-6 alkenyl group which may be substituted, a C2-6 alkynyl group which may be substituted, a cycloalkyl group having three to eight carbon atoms which may be substituted, a 2,2-(alkylenedioxy)ethyl group or a group represented by the formula:
(wherein the ring C represents benzene ring, an aliphatic ring or a heterocyclic ring; R6s are the same as or different from each other and each represents hydrogen atom, a halogen atom, hydroxyl group, nitrile group, a C1-6 alkyl group which may be substituted, a C2-6 alkenyl group which may be substituted, a C2-6 alkynyl group which may be substituted, a cycloalkyl group having three to eight carbon atoms which may be substituted, a C1-6 alkoxy group which may be substituted, a C1-6 alkoxyalkoxy group which may be substituted, an aryloxy group which may be substituted or an aralkyloxy group which may be substituted, and further two of R6s may together form an aliphatic ring, an aromatic ring, a heterocyclic ring or an alkylenedioxy ring; R7 represents a halogen atom, hydroxyl group, a C1-6 alkyl group which may be substituted, a C1-6 alkoxy group, nitrile group, a halogeno-C1-6 alkyl group, a hydroxyl-C1-6 alkyl group, a cyano-C1-6 alkyl group, an amino-C1-6 alkyl group, nitro group, azide group, an amino group which may be substituted, a carbamoyl group which may be substituted, a carboxyl group which may be substituted, mercapto group or a thio-C1-6 alkoxy group; and n represents an integer of 1 to 5), provided that 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine, a pharmacologically acceptable salt thereof or a hydrate of them are excluded.
本发明提供了一种茚满酮衍生物和一种包含茚满酮衍生物的优良σ受体结合剂。更具体地说,本发明提供了一种σ受体结合剂,它由下式所代表的茚酮衍生物、其药理学上可接受的盐或它们的水合物组成。
在式 (I) 中,R1、R2、R3 和 R4 彼此相同或不同,各自代表氢原子、卤素原子、羟基、腈基、可被取代的 C1-6 烷基、具有三至八个碳原子且可被取代的环烷基、可被取代的 C1-6 烷氧基、具有三至八个碳原子且可被取代的环烷氧基、具有一至六个碳原子且可被取代的酰基、可被取代的 C1-6 烷氧基羰基、可被取代的 C1-6 烷基氨基羰氧基、可被取代的二(C1-6 烷基)氨基羰氧基、硝基、可被取代的氨基、可被取代的酰胺基、巯基或可被取代的硫代-C1-6 烷氧基,此外,R1 与 R2、R2 与 R3 或 R3 与 R4 可共同形成脂肪环、芳香环、杂环或烷基二氧基环;部分结构:
代表由 >CH-CH2-、>C=CH- 或 >C(-R7)-CH2-代表的基团;m 代表 0 或 1 至 5 的整数;R5 代表氢原子、可被取代的 C1-6 烷基、可被取代的 C2-6 烯基、可被取代的 C2-6 烷基、可被取代的具有 3 至 8 个碳原子的环烷基、2,2-(烷基二氧基)乙基或由式...代表的基团:
(其中环 C 代表苯环、脂肪环或杂环;R6s 彼此相同或不同,各自代表氢原子、卤素原子、羟基、腈基、可被取代的 C1-6 烷基、可被取代的 C2-6 烯基、可被取代的 C2-6 烷基、具有三至八个碳原子的可被取代的环烷基、可被取代的 C1-6 烷氧基、可被取代的 C1-6 烷氧基、可被取代的芳氧基或可被取代的芳烷氧基,另外两个 R6 可共同形成脂肪环、芳香环、杂环或烷二氧基环;R7 代表卤素原子、羟基、可被取代的 C1-6 烷基、C1-6 烷氧基、腈基、卤素-C1-6 烷基、羟基-C1-6 烷基、氰基-C1-6 烷基、氨基-C1-6 烷基、硝基、叠氮基、可被取代的氨基、可被取代的氨基甲酰基、可被取代的羧基、巯基或硫代-C1-6 烷氧基;和 n 代表 1 至 5 的整数),但不包括 1-苄基-4-[(5,6-二甲氧基-1-茚酮)-2-基]甲基哌啶、其药理学上可接受的盐或它们的水合物。