Cinnamaic acid salts, processes for the preparation thereof and use thereof as medicament

A compound of the formula 1

• 4
• wherein
• R1 and R2 which may be identical or different denote hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen, —CF3 or phenyl or if R1 and R2 are adjacent, together they represent a —CH═CH—CH═CH— bridge;
• and
• R3 denotes hydrogen, C1-C4-alkyl, C1-C4-alkoxy, halogen or —CF3.