Disclosed are novel crystalline salts of (S)-6-((1-acetylpiperidin-4-yl)amino)-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)pyrimidine-4-carboxamide and pharmaceutical compositions containing the same. Also disclosed are processes for the preparation thereof and methods for use thereof.Linvention concerne de nouveaux sels cristallins de(S)-6-((1-acétylpipéridin-4-yl)amino)-N-(3-(3,4-dihydroisoquinolin-2(1H)-yl)-2-hydroxypropyl)pyrimidine-4-carboxamide et des compositions pharmaceutiques les contenant. Linvention concerne également leurs procédés de préparation et leurs procédés dutilisation.