申请人:Takeda Chemical Industries, Ltd.
公开号:US06310107B1
公开(公告)日:2001-10-30
A compound of the formula:
wherein Ar is an aromatic ring assembly group which may be substituted or a fused aromatic group which may be substituted; X is (i) a bond, (ii) —S—, —SO— or —SO2—, (iii) C1-6 alkylene, C2-6 alkenylene or C2-6 alkynylene, etc., (iv) —CO—O— or (v) —(CH2)p-X1—, —(CH2)p-X1— (CH2)q-, —(CH2)r-CO—X1—, —SO2—NR8— or —(CH2)r-SO2—NR8— wherein X1 is O or NR8, R8 is H, a hydrocarbon group which may be substituted or an acyl, p is 0 to 5, q is 1 to 5, p+q is 1 to 5, and r is 1 to 4; Y is a divalent C1-6 aliphatic hydrocarbon group optionally containing O or S, which may be substituted; R1 and R2 each is H or a lower alkyl which may be substituted, or R1 and R2 form a N-containing heterocyclic ring which may be substituted; Ring A is a benzene ring which may be further substituted; and Ring B is a 4- to 8-membered ring which may be further substituted, or a salt thereof has the effect of inhibiting amyloid-&bgr; protein production and/or secretion and is useful as a pharmaceutical composition for preventing and/or treating the neurodegenerative disease, etc.
该化合物的化学式如下:其中Ar是一种芳香环组合基团,可以是取代的或者是取代的融合芳香基团;X是(i)一个键,(ii)—S—,—SO—或—SO2—,(iii)C1-6烷基,C2-6烯基或C2-6炔基等,(iv)—CO—O—或(v)—(CH2)p-X1—,—(CH2)p-X1—(CH2)q-,—(CH2)r-CO—X1—,—SO2—NR8—或—(CH2)r-SO2—NR8—其中X1是O或NR8,R8是H,一个可以被取代的碳氢基团或酰基,p是0到5,q是1到5,p+q是1到5,r是1到4;Y是一个二价的C1-6脂肪烃基,可选含有O或S,可以是取代的;R1和R2分别是H或一个可以被取代的较低烷基,或者R1和R2形成一个可以被取代的含氮杂环;环A是一个苯环,可以进一步被取代;环B是一个4至8元环,可以进一步被取代,或其盐具有抑制淀粉样蛋白β蛋白的产生和/或分泌的作用,并且可作为预防和/或治疗神经退行性疾病等的药物组成部分。