Summary of properties of compounds 18 to 20.

Compound	Condition of synthesis	Yield (%)	Activity	Outcome	Reference
18	6 h reflux of precursors in EtOH	60	Antibacterial/antifungal and DNA cleavage	Cu(ii) complex showed the highest activities but was not compared with curcumin	41
19	6 h reflux of precursors in EtOH	60	Antibacterial/antifungal and DNA cleavage	Cu(ii) complex was the most potent compound but was not compared with curcumin	42
20	6 h reflux of precursors in EtOH	63	Antibacterial/antifungal and DNA cleavage	Cu(ii) complex showed the highest activities but was not compared with curcumin	43