申请人:Sankyo Company Limited
公开号:EP0498680A1
公开(公告)日:1992-08-12
The compounds of the invention are β-amino-α-hydroxycarboxylic acid derivatives having the formula (I):
wherein:
R¹ represents a group of formula R(Z)xA-
wherein R is hydrogen, or a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group or R is a group of formula -NRaRb wherein Ra and Rb are hydrogen atoms, alkyl groups, unsubstituted or substituted cycloalkyl, heterocyclic, aralkenyl or aryl groups,
Z represents oxygen or sulphur;
A represents a group of formula -CO-, -COCO-, -SO-, -SO₂- or -CS-; and
x is the cipher 0 or the integer 1;
R² represents a hydrogen atom, or a substituted or unsubstituted alkyl group;
R³ is hydrogen, or a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group;
R⁴ is a hydrogen atom, a substituted or unsubstituted alkyl, aryl or heterocyclic group;
and
R⁵ represents a group of formula -B-(CO)-Y-Rcy , wherein
B represents a heterocyclic group unsubstituted or substituted with at least one alkyl group;
Y represents an oxygen atom, a nitrogen atom or a sulphur atom;
y is the integer 1 when Y represents an oxygen atom or a sulphur atom, and 2 when Y represents a nitrogen atom; and
Rc represents
is hydrogen, or a substituted or unsubstituted alkyl, alkenyl, alkynyl, aryl or heterocyclic group;
and, where there are two groups or atoms represented by Rc, they are the same or different; and
and pharmaceutically acceptable salts and esters thereof.
本发明的化合物是β-氨基-α-羟基羧酸衍生物,具有以下式子(I):其中:R¹表示以下式子的基团R(Z)xA-,其中R为氢,或取代或未取代的烷基,烯基,炔基,芳基或杂环基,或R为以下式子的基团-NRaRb,其中Ra和Rb为氢原子,烷基,未取代或取代的环烷基,杂环基,芳烯基或芳基;Z表示氧或硫;A表示以下式子的基团-CO-,-COCO-,-SO-,-SO₂-或-CS-;x为0或整数1;R²表示氢原子,或取代或未取代的烷基;R³为氢,或取代或未取代的烷基,烯基,炔基,芳基或杂环基;R⁴为氢原子,取代或未取代的烷基,芳基或杂环基;和R⁵表示以下式子的基团-B-(CO)-Y-Rcy,其中B表示未取代或取代的至少有一个烷基的杂环基;Y表示氧原子,氮原子或硫原子;当Y表示氧原子或硫原子时,y为整数1,当Y表示氮原子时,y为整数2;并且Rc表示氢原子,或取代或未取代的烷基,烯基,炔基,芳基或杂环基;当有两个由Rc表示的基团或原子时,它们是相同的或不同的;以及其药学上可接受的盐和酯。