Rational Design, Synthesis, and Biological Evaluation of Bis(pyrimido[5,6,1-<i>de</i>]acridines) and Bis(pyrazolo[3,4,5-<i>kl</i>]acridine-5-carboxamides) as New Anticancer Agents
des) 4. The noncovalent DNA-binding properties of these compounds have been examined using fluorometric techniques. The results indicate that (i) the target compounds are excellent DNA ligands; (ii) the bis derivatives 5 and 6 are more DNA-affinic than corresponding monomers 7 and 8; (iii) the new bis 5 and 6 result always less efficient in binding than related bis(acridine-4-carboxamides) 3 and 4;