Salts of 1-(3-methyl-2-oxo-2,3-dihydro-1,3-benzoxazol-6-yl)-2,4-dioxo-3-[(1R)-4-(trifluoromethyl) -2,3-dihydro-1H-inden-1-yl]-1,2,3,4-tetrahydropyrimidine-5-carboxylic acid of the formula (I), in particular amino acid salts such as the lysine salt and alkali metal salts such as the sodium salt and the potassium salt, processes for their preparation, medicaments comprising them and their use for controlling diseases.