PTC Therapeutics, Inc.
Compounds for treating spinal muscular atrophy

Abstract:

The present invention provides compounds of formula (I) ##STR00001## wherein A, R.sup.1, R.sup.2 and R.sup.3 are as described herein, as well as pharmaceutically acceptable salts thereof. Further the present invention is concerned with the manufacture of the compounds of formula (I), pharmaceutical compositions comprising them and their use as medicaments.