The present invention relates to a class of hydroxamic acid compounds of Formula (I), which act as alkylating agents and/or inhibitors of the HDAC pathway, having potential utility in the treatment of a neoplastic disease and immune diseases.本發明係關於一類式(I)之異羥肟酸化合物,其作為烷基化試劑及/或HDAC途徑抑制劑,在腫瘤性疾病及免疫疾病之治療中具有潛在效用。