Summary of properties of compounds 26 to 31.

Compound	Condition of synthesis	Yield (%)	Activity	Outcome	Reference
26 and 27	Stirring of precursors in MeOH for 6 h, then 8 h reflux	No reported	DNA cleavage	Cu(ii) complex showed the highest Kb	50
28a–d	24 h reflux of precursors in CHCl3/MeOH in presence of piperidine	60–67	DNA cleavage and anticancer	All compounds showed the good DNA interacting tendency	51
29	Stirring of precursors in MeOH for 24 h in presence of piperidine	No reported	DNA cleavage and anticancer	Two ruthenium(iii) complexes were potent for treatment of cervical cancer	52
30	Reflux of precursors in EtOH for 4 h in presence of acetic acid	80	Antibacterial/antifungal and DNA cleavage	Cu(ii) complex showed the highest activities	53
31	Reflux of precursors in EtOH	No reported	Antioxidant	All Cu(ii) complexes showed the higher activity than curcumin	54