| Complexes | cytotoxicity to Vero cell | cytotoxicity to MCF-7 cell line | ||
| activity | IC50 (μg/mL) | activity | IC50 (μg/mL) | |
| C1 C2 C3 C4 C5 | noncytotoxic noncytotoxic noncytotoxic noncytotoxic cytotoxic | - - - - 49.11 | active active active active active | 15.25 12.46 23.37 20.24 9.75 |