Cyclic imides are well known to be very important antitumor agents such as mitonafide and amonafide etc. Based on this fact, we have synthesized two series of cyclic imidederivatives containing two cyclic imide moiety in their structures (bis-cyclic imides) and screened them for in vitro anticancer activity against five human cancer cell lines i.e. breast (T47D), lung (NCl H-522), colon (HCT-15),