[Synthesis, structure characterization and anti-tumor activity of lanthanide complex Ln[ (Phen)2 (5-Fu)3 (NO3) (NO3 )2].

Aim: To study the biochemistry of lanthanides, the cooperative action of inorganic and organic anti-tumor drugs.

Methods: A series of rare earth complexes were synthesized with Ln(NO3) 6H2O, Phen and 5-Fu. Their anti-tumor activity was measured by the improved MTT, SRB methods.