The present invention refers to a 4 phenylbutyric acid derivative of Formula (1) wherein Y is selected from 0 or H R is selected from N or H R is a radical of an amino acid a salicylic acid a 4 phenylbutyric acid a catechol or a derivative of any of the aforementioned and n is selected from 0 1 2 3 4 5 6 7 8 9 or 10 for use in the treatment of inflammatory diseases angiopathic diseases otosclerosis mental disorders and tinnitus.