The invention relates to a compound of the general formula (I) or a physiologically functional derivative, solvate or salt thereof, wherein A, X, L, Y, R, and RN are as defined herein. The invention further relates to the use of the compounds of formula (I) as a medicament, a pharmaceutical composition comprising them, a method of treatment or prevention of a medical condition entailing the administration thereof, and the use thereof in the manufacture of a medicament for the treatment or prevention of a medical condition, particularly autoimmune inflammatory disorders, CNS disorders, sleeping disorders, or proliferative diseases including cancer. The invention further relates to a specific process for the preparation of said compounds.
