申请人:Takeda Chemical Industries, Ltd.
公开号:US05580883A1
公开(公告)日:1996-12-03
A compound useful for central antioxidant having inhibitory activity of degeneration and necrocytosis of cerebral cells of the formula (I): ##STR1## wherein A and B are independently (1) a group of the formula: ##STR2## wherein R.sub.1 and R.sub.2 are independently hydrogen atom, an optionally substituted hydrocarbon residue or an optionally substituted heterocyclic group, or R.sub.1 together with R.sub.2 and the nitrogen atom to which they are bound may form a cyclic amino group, provided that both R.sub.1 and R.sub.2 are not hydrogen atom at the same time, or (2) a group of the formula: ##STR3## wherein D is O or S, R.sub.3 is hydrogen atom, an optionally substituted hydrocarbon residue or an optionally substituted acyl group, m is 1, 2, or 3 and n is 0, 1, 2, 3 or 4; p is 1 or 2, provided that both A may be the same or different when p is 2; and R.sub.4, R.sub.5 and R.sub.6 are independently hydrogen atom, a lower alkyl or a lower alkoxy, or R.sub.5 and R.sub.6 may bond together to form --CH.dbd.CH--CH.dbd.CH--, or a salt thereof.
一种用于中枢抗氧化剂的化合物,具有抑制脑细胞退化和坏死的活性,化学式为(I):其中A和B分别是(1)具有以下式的基团:其中R.sub.1和R.sub.2分别是氢原子、可选择取代的碳氢残基或可选择取代的杂环基,或者R.sub.1与R.sub.2以及它们结合的氮原子可以形成一个环氨基,前提是R.sub.1和R.sub.2不能同时为氢原子,或者(2)具有以下式的基团:其中D为O或S,R.sub.3为氢原子、可选择取代的碳氢残基或可选择取代的酰基,m为1、2或3,n为0、1、2、3或4;p为1或2,前提是当p为2时A可以相同或不同;R.sub.4、R.sub.5和R.sub.6分别是氢原子、低碳基或低烷氧基,或者R.sub.5和R.sub.6可以结合形成--CH.dbd.CH--CH.dbd.CH--,或其盐。