The invention relates to thiazole, oxazole, imidazole, isoxazole and isoxazoline derivatives of general formula (I) [chemical expression included] wherein Het is thiazole, oxazole, imidazole, isoxazole or isoxazoline, n is an integer from 0 to 6, A is notably selected from various optionally substituted aromatic radicals, B is notably hydrogen, alkyl or phenyl, R1 and R2 are notably independently hydrogen, alkyl or cycloalkyl and Ω is —NR46R47 or —OR48, R46 and R47 are notably independently hydrogen, alkyl, cycloalkyl or —(CH2)k—COOR51, R51 is notably alkyl or haloalkyl and R48 is notably hydrogen or alkyl. These compounds have advantageous pharmacological properties which allow their use in therapeutics, notably for treating neurodegenerative disorders or pain.