COMPOUND WITH PROLYL ENDOPEPTIDASE INHIBITOR ACTIVITY AND PHARMACEUTICAL USE THEREOF
申请人:JAPAN TABACCO INC.
公开号:EP0670309A1
公开(公告)日:1995-09-06
A compound represented by general formula (I) or a pharmaceutically acceptable salt thereof, wherein: R represents hydrogen or acyl; U represents -O-, -CHR¹- or -NR²-, wherein R¹ represents hydrogen or heterocycle, and R² represents hydrogen or lower alkyl substituted by lower alkoxycarbonyl; V represents -O-, -S-, -CHR³- or -NR⁴-, wherein R³ represents hydrogen or lower alkoxycarbonyl, and R⁴ represents hydrogen, lower alkyl or acyl; W represents methyl, heterocycle or optionally substituted phenyl; X and Y, which may be the same or different from each other, represent each -CH₂- or -S-; m represents an integer of 0 to 6; and n represents an integer of 1 to 4. The compound has a specifically potent inhibitory activity against prolyl endopeptidase and suppresses the decomposition and deactiviation of TRH, substance P, neurotensin, vasopressin, and so forth. Hence it can be used for preventing and/or treating dementia and amnesia including Alzheimer's disease.
通式(I)代表的化合物或其药学上可接受的盐,其中R代表氢或酰基;U代表-O-、-CHR¹-或-NR²-,其中R¹代表氢或杂环,R²代表氢或被低级烷氧基羰基取代的低级烷基;V代表-O-、-S-、-CHR³-或-NR⁴-,其中R³代表氢或低级烷氧基羰基,R⁴代表氢、低级烷基或酰基;其中 R³ 代表氢或低级烷氧基羰基,R⁴ 代表氢、低级烷基或酰基; W 代表甲基、杂环或任选取代的苯基; X 和 Y(可以相同或不同)分别代表-CH₂- 或-S-; m 代表 0 至 6 的整数; n 代表 1 至 4 的整数。该化合物对脯氨酰内肽酶具有特别强的抑制活性,并能抑制 TRH、P 物质、神经紧张素、血管加压素等的分解和失活。因此,它可用于预防和/或治疗包括阿尔茨海默病在内的痴呆症和健忘症。