abstract |
Compounds of formula I: (Wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are as defined herein) or a pharmaceutically acceptable salt thereof. Process for the preparation of the methods and the compounds used for P2X 3 and / or P2X 2/3 present compounds for the treatment of diseases associated with receptor antagonists are also disclosed. |