| abstract |
The present invention provides compounds of formula (I) (I) wherein: A, R1, R2, and R3 for use in the treatment, prevention, and / or delay of progression of amyotrophic lateral sclerosis (ALS). Provided that the compounds are as described herein) and pharmaceutically acceptable salts thereof. Furthermore, the present invention relates to the preparation of the compounds of formula (I), pharmaceutical compositions containing them and their use as medicaments. |