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。
US5536737A
申请人:——
公开号:US5536737A
公开(公告)日:1996-07-16
Compound having prolyl endopeptidase inhibitory activity and
申请人:Japan Tobacco Inc.
公开号:US05536737A1
公开(公告)日:1996-07-16
Compounds of the formula ##STR1## wherein R is a hydrogen atom or an acyl; U is --O--, --CHR.sup.1 -- or --NR.sup.2 -- wherein R.sup.1 is a hydrogen atom or a hetero ring, and R.sup.2 is a hydrogen atom or a lower alkoxycarbonyl lower alkyl; V is --O--, --S--, --CHR.sup.3 -- or --NR.sup.4 -- wherein R.sup.3 is a hydrogen atom or a lower alkoxycarbonyl, and R.sup.4 is a hydrogen atom, a lower alkyl or an acyl; W is methyl, a hetero ring or optionally substituted phenyl; X and Y are the same or different and each is --CH.sub.2 -- or --S--; m is an integer of 0 to 6; and n is an integer of 1 to 4, and pharmaceutically acceptable salts thereof. The compounds of the present invention have specifically strong inhibitory activity against prolyl endopeptidase, and suppress decomposition and inactivation of TRH, substance P, neurotensin, vasopressin and the like. Accordingly, the compounds can be used for the prophylaxis and/or treatment of dementia and amnesia including Alzheimer's disease.