Novel ureyl-substituted naphthalimide derivatives, pharmaceutically acceptable salts thereof and solvates thereof, are useful for making pharmaceutical compositions for the treatment of cell proliferative diseases such as cancer. The invention also provides methods of treating specific types of cancer such as prostate, esophageal, glioblastoma, gliosarcoma, NSCLC, head and neck, and breast with the compounds described herein alone and in combination with antineoplastic agents.