| abstract |
The present invention relates to compounds of formula (I), their combinations and uses for disease therapy, or their pharmaceutically acceptable salts, solvates, including all tautomers and stereoisomers thereof. Or polymorphs (wherein R 1 represents (A) or (B) and R 2 , R 3 , R 4 , R 5 , R 6 , X 1 , X 2 , X 3 , X 4 , Y and Z are defined throughout the description and the claims.) [Chemical 1] [Selection figure] None |