The invention relates to derivatives of formula (I), wherein the substituents are as defined in the specification to processes for the preparation of such derivatives pharmaceutical compositions comprising such derivatives such derivatives as a medicament such derivatives for the treatment of pain.本發明係關於式(I)衍生物,其中取代基係如說明書中所定義;製備該等衍生物之方法;包含該等衍生物之醫藥組合物;該等衍生物用作藥劑;該等衍生物用於治療疼痛。