The present invention relates to a salt selected from the group comprising the N-methyl-D-glucamine salt (NMG), the diethylamine salt (DEA) salt, the magnesium salt, the tromethamine salt, the choline salt, the L-arginine salt, the zinc salt, and the 4-(2-hydroxyethyl)morpholine (HEM) salt of compounds of the general formula (I)whereinX is selected from the group consisting of CH2, S, or O；D is O or S；R8 is hydrogen or alkyl；E is an optionally substituted phenylene group；Y is a monocyclic or bicyclic substituted or unsubstituted 6-9 membered ring system which may contain one or more heteroatoms selected from N or S and which contains at least one aromatic ring；n is 0 or 1； andq is 0 or 1；with the proviso that compounds wherein X═CH2, q=0, Y=unsubstituted phenyl and E=unsubstituted phenylene are excluded； or a hydrate thereof.
