申请人:HOFFMANN LA ROCHE
公开号:WO2009087127A1
公开(公告)日:2009-07-16
The invention relates to compounds of formula (I) R1 is -C(O)O-lower alkyl, cyano or is hetaryl; hetaryl is a five-or six membered heteraryl group, optionally substituted by R'; R' is halogen, lower alkyl, lower alkyl substituted by halogen, lower alkoxy or lower alkoxy substituted by halogen; R2 is hydrogen, lower alkoxy, lower alkyl, halogen or cyano; R3 is -(CH2)n-C(O)O-lower alkyl, lower alkyl, lower alkoxy, hydroxy, -O-Si(CH3)2-lower alkyl, -C(O)-N(lower alkyl)2, -O-S(O)2-lower alkyl, C3-7-cycloalkyl, S(O)2-aryl, heterocyclyl, -C(O)-heterocyclyl, or is aryl or hetaryl, which aryl or hetaryl rings are optionally substituted by one or more R'; R4 is hydrogen, lower alkyl, hydroxy or CH2CN; X is S or -N=C(R5)-; R5 is hydrogen, lower alkyl or hydroxy, is a bond, -O-, -CH2-, -CH2-CH2-, formula (II) or or -N(R)-; R is hydrogen, lower alkyl, C(O)O-lower alkyl, C(O)-lower alkyl, S(O)2-lower alkyl, or benzyl; n is 0 or 1 or to pharmaceutically active acid addition salts. The compounds may be used for the treatment of Alzheimer's disease, cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, Dutch-type (HCHWA-D), multi-infarct dementia, dementia pugilistica or Down syndrome.
本发明涉及式(I)的化合物,其中R1为-C(O)O-较低烷基,氰基或是杂芳基;杂芳基是五元或六元的杂芳基团,可选择性地由R'取代;R'为卤素,较低烷基,由卤素取代的较低烷基,较低烷氧基或由卤素取代的较低烷氧基;R2为氢,较低烷氧基,较低烷基,卤素或氰基;R3为-(CH2)n-C(O)O-较低烷基,较低烷基,较低烷氧基,羟基,-O-Si(CH3)2-较低烷基,-C(O)-N(较低烷基)2,-O-S(O)2-较低烷基,C3-7-环烷基,S(O)2-芳基,杂环基,-C(O)-杂环基,或是芳基或杂芳基,其中芳基或杂芳基环可以选择性地由一个或多个R'取代;R4为氢,较低烷基,羟基或CH2CN;X为S或-N=C(R5)-;R5为氢,较低烷基或羟基,是一个键,-O-,-CH2-,-CH2-CH2-,式(II)或或-N(R)-;R为氢,较低烷基,C(O)O-较低烷基,C(O)-较低烷基,S(O)2-较低烷基或苄基;n为0或1或是药物活性酸盐。这些化合物可用于治疗阿尔茨海默病、脑淀粉样血管病、遗传性脑出血伴有淀粉样蛋白病、荷兰型(HCHWA-D)、多发性脑梗死、拳击性痴呆或唐氏综合症。