5,7-DISUBSTITUTED 4-AMINOPYRIDO[2,3-D]PYRIMIDINE COMPOUNDS AND THEIR USE AS ADENOSINE KINASE INHIBITORS

摘要

A method for inhibiting adenosine kinase by administering a compound having formula (I) wherein R<1> and R<2> are independently selected from H, loweralkyl, C1-C6alkoxyC1-C6alkyl, arylC1-C6alkyl, -C(O)C1-C6alkyl, -C(O)aryl, -C(O)heterocyclic or may join together with the nitrogen to which they are attached to form a 5-7 membered ring optionally containing 1-2 additional heteroatoms selected from O, N or S; R<3> is selected from the group consisting of loweralkyl, loweralkenyl, loweralkynyl, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocyclic group, heteroarylalkyl or heterocycloalkyl wherein the heteroaryl and heterocyclic groups are linked directly or indirectly by a ring carbon; R<4> is selected from the group consisting of loweralkyl, loweralkenyl, loweralkynyl, cycloalkyl, aryl, arylalkyl, heteroaryl, heterocyclic group heteroarylalkyl or heterocycloalkyl; and a dashed line --- indicates that a double bond is optionally present provided that proper valencies are maintained, a pharmaceutical composition comprising a therapeutically effective amount of a compound thereof above in combination with a pharmaceutically acceptable carrier, and a method of treating cerebral ischemia, epilepsy, nociperception, inflammation and sepsis in a mammal in need of such treatment, comprising administering to the mammal a therapeutically effective amount of a compound thereof, a process for preparing said compounds, and compounds having the above formula wherein R<1>, R<2>, R<3> and R<4> are separately defined.