申请人:ANALYTICAL RESEARCH
PHARMACEUTICALS PTY. LTD.
公开号:EP0070131A1
公开(公告)日:1983-01-19
Certain new phosphonoalkanoylamino acids of the formula (I) herein and their pharmaceutically acceptable salts exhibit improved antihypertensive properties and are particularly useful for the reduction of angiotensin related hypertension.
in which R, and R2, which are the same or different, are each selected from the group consisting of a hydrogen atom, an optionally substituted lower alkyl, a lower alkenyl, an optionally substituted aryl and an optionally substituted aralkyl radical;
n is 0 or 1;
R3 is a hydrogen atom, an optionally substituted lower alkyl, a lower alkenyl, an optionally substituted aryl or an optionally substituted aralkyl group; and
(a) R4 is a hydrogen atom, a lower alkyl or a phenyl-lower alkyl radical;
R5 and R6, which are the same or different, are each selected from the group consisting of a hydrogen atom, an optionally substituted lower alkyl or an aryl radical; and
R7 is selected from the group consisting of -OR8, -NR9 or -SR10, wherein R8 and R,o are each selected from the group consisting of a hydrogen atom, a lower alkyl, an optionally substituted aryl, or an optionally substituted aralkyl radical and Rs is a hydrogen atom, a hydroxy or lower alkyl radical or the residue of an - amino acid; or (b) R4 and R5 are part of a four-, five- or six-membered optionally substituted heterocyclic ring as a connected bridge of 2 to 4 atoms of carbon or carbon and either nitrogen, sulphur or oxygen; and
R6 and R7 are each as defined in (a); with the proviso that when R3 is a hydrogen atom, n is 0, the heterocyclic ring is an unsubstituted pyrrolidine, R6 is a hydrogen atom, and R7 is ORB, at least one of R1, R2 and R8 is an optionally substituted aryl radical; or
(c) R5 and R6 are selected to form a side chain of a-amino acid, where N(R4) CR5R6COR7 is an a-amino acid residue; with the proviso that (i) when R3 is hydrogen and n is 0, the a-amino acid residue is not alanine, aspartic acid, glutamic acid, glycine or phenylalanine, and (ii) when R3 is hydrogen and n is 1, the a-amino acid residue is not aspartic acid; or (d) R5 and R6 are part of a cycloalkyl ring of from 3 to 6 carbon atoms; and
R4 and R7, where appropriate, are each as defined in (a); or a pharmaceutically acceptable salt of the compounds of the formula (I).
某些新的式(I)膦酰基烷酰胺酸及其药学上可接受的盐具有更好的抗高血压特性,尤其适用于降低与血管紧张素相关的高血压。
其中相同或不同的 R 和 R2 各自选自由氢原子、任选取代的低级烷基、低级烯基、任选取代的芳基和任选取代的芳烷基组成的组;
n 为 0 或 1;
R3 是氢原子、任选取代的低级烷基、低级烯基、任选取代的芳基或任选取代的芳烷基;和
(a) R4 是氢原子、低级烷基或苯基-低级烷基;
R5和R6(相同或不同)各自选自由氢原子、任选取代的低级烷基或芳基组成的组;以及
R7选自由-OR8、-NR9或-SR10组成的组,其中R8和R,o各自选自由氢原子、低级烷基、任选取代的芳基或任选取代的芳烷基组成的组,Rs是氢原子、羟基或低级烷基或-氨基酸的残基;或 (b) R4 和 R5 是四元、五元或六元任选取代的杂环的一部分,是 2 至 4 个碳原子或碳原子与氮、硫或氧原子的连接桥;以及
R6 和 R7 各自如(a)中定义;但当 R3 是氢原子,n 是 0,杂环是未取代的吡咯烷,R6 是氢原子,R7 是 ORB 时,R1、R2 和 R8 中至少有一个是任选取代的芳基;或 (b) R3 是氢原子,n 是 0,杂环是未取代的吡咯烷,R6 是氢原子,R7 是 ORB 时,R1、R2 和 R8 中至少有一个是任选取代的芳基。
(c) R5 和 R6 被选来形成 a-氨基酸侧链,其中 N(R4) CR5R6COR7 是 a-氨基酸残基;但(i)当 R3 为氢且 n 为 0 时,a-氨基酸残基不是丙氨酸、天冬氨酸、谷氨酸、甘氨酸或苯丙氨酸,和(ii)当 R3 为氢且 n 为 1 时,a-氨基酸残基不是天冬氨酸;或 (d) R5 和 R6 是 3 至 6 个碳原子的环烷基环的一部分;和
R4和R7(如适用)各自如(a)中定义;或式(I)化合物的药学上可接受的盐。