The present invention relates to tetrahydropyran and thiopyran derivatives having dual pharmacological activity towards both the sigma (σ) receptor, and the μ-opioid receptor, to processes of preparation of such compounds, to pharmaceutical compositions comprising them, and to their use in therapy, in particular for the treatment of pain.本發明涉及具有針對西格馬(σ)受體和μ-類鴉片受體二者的雙重藥理學活性的四氫哌喃和噻喃衍生物,涉及此類化合物之製備方法,涉及包含它們的醫藥組成物,並且涉及它們在療法中之用途,特別是用於治療疼痛。