申请人:Banyu Pharmaceutical Co., Ltd.
公开号:EP0264106A2
公开(公告)日:1988-04-20
A 5-substituted amino-4-hydroxy-pentanoic acid derivative having the formula:
wherein R¹ is a hydrogen atom, a lower alkoxycarbonyl group, an aryloxycarbonyl group, an aralkyloxycarbonyl group or a lower alkanoyl group which may be substituted by from one to three substituents selected from the group consisting of an amino group, a hydroxyl group, a carboxyl group, an aryloxy group, an aralkyloxycarbonylamino group, a lower alkoxycarbonylamino group
wherein each of X¹ and X² which may be the same or different is a hydrogen atom, a lower alkyl group, an aryl group or an aralkyl group, or X¹ and X² form together with the adjacent nitrogen atom a 5- or 6-membered heterocyclic group which may further contain a hereto atom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom which may further contain a double bond in its carbon chain, each of R², R³ and R⁵ which may be the same or different is a hydrogen atom, a lower alkyl group or a residue of an acidic, neutral or basic amino acid, R⁴ is a hydrogen atom or a lower alkyl group, R⁶ is a lower alkyl, cycloalkyl, cycloalkylalkyl or aralkyl group which is substituted by one or two hydroxyl groups, R⁷ is a hydroxyl group, a -OY group wherein Y is a lower alkyl group, an aryl group, an aralkyl group, a lower alkoxyalkyl group, a lower alkanoyloxyalkyl group, a lower alkoxycarbonyloxyalkyl group or a 1-phthalidyl group,
wherein each of Y¹ and Y² which may be the same or different is a hydrogen atom, a lower alkyl group, an aryl group, an aralkyl group or a cycloalkyl group, or Y¹ and Y² form together with the adjacent nitrogen atom 5- or 5-membered heterocyclic group which may further contain a hereto atom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, and each of n and m which may be the same or different is 0 or 1.
5-取代氨基-4-羟基戊酸衍生物,其式如下
其中 R¹为氢原子、低级烷氧基羰基、芳氧基羰基、芳烷氧基羰基或低级烷酰基,该低级烷酰基可被选自氨基、羟基、羧基、芳氧基、芳烷氧基羰基氨基、低级烷氧基羰基氨基所组成的组中的一至三个取代基所取代
其中 X¹ 和 X² 可相同或不同,各自为氢原子、低级烷基、芳基或芳烷基,或 X¹ 和 X² 与邻近的氮原子一起形成 5 或 6 元杂环基团,该杂环基团可进一步包含一个从氮原子、氧原子和硫原子组成的组中选出的同族原子,该杂环基团可进一步在其碳链中包含一个双键,R²、R³ 和 R⁵ 可相同或不同,各自为氢原子、R⁴ 是氢原子或低级烷基,R⁶ 是被一个或两个羟基取代的低级烷基、环烷基、环烷基烷基或芳烷基、R⁷ 是羟基、-OY 基团,其中 Y 是低级烷基、芳基、芳烷基、低级烷氧基烷基、低级烷酰氧基烷基、低级烷氧羰氧基烷基或 1-邻苯二甲酰基、
其中Y¹和Y²可以相同或不同,各自为氢原子、低级烷基、芳基、芳烷基或环烷基,或Y¹和Y²与相邻的氮原子一起形成5元或5元杂环基团,该杂环基团可进一步包含一个从氮原子、氧原子和硫原子组成的组中选出的同位原子,且n和m可以相同或不同,各自为0或1。