Table 1.

Inhibition of cancer cell growth in three human cancer cell lines, determined by the MTT assay (exposure time: 96 h).

	Compound	A549 (μM)	SW480 (μM)	CH1 (μM)
Ru	3a 1a [5]	11 ± 1 24 ± 4∗	5.4 ± 1.1 9.5 ± 0.7∗	1.9 ± 0.1 3.0 ± 0.9∗
	3b 1b [5]	20 ± 3 16 ± 1∗	7.9 ± 1.5 8.6 ± 0.9∗	2.8 ± 0.2 3.4 ± 0.2∗
	3c 1c [5]	> 200 12 ± 1∗	> 200 5.1 ± 0.4∗	102 ± 11 1.6 ± 0.4∗
	3d 1d [5]	7.2 ± 1.0 34 ± 3∗	3.8 ± 0.3 19 ± 2∗	1.61 ± 0.04 14 ± 2∗
	3e 1e [5]	14 ± 1 27 ± 1∗	5.5 ± 2.2 17 ± 1∗	1.8 ± 0.3 7.3 ± 0.4∗
Os	4a 2a [5]	12 ± 1 17 ± 1∗	5.9 ± 1.9 9.3 ± 1.1∗	2.3 ± 0.2 3.0 ± 0.2∗
	4b 2b [5]	20 ± 2 10 ± 1∗	7.4 ± 2.3 7.1 ± 0.3∗	2.7 ± 0.2 2.0 ± 0.4∗
	4c 2c [5]	> 200 10 ± 1∗	> 200 4.4 ± 0.5∗	> 200 0.83 ± 0.14∗
	4d 2d [5]	7.1 ± 0.6 17 ± 1∗	3.4 ± 0.9 9.3 ± 1.6∗	1.2 ± 0.2 3.7 ± 0.6∗
	4e 2e [5]	24 ± 1 14 ± 1∗	8.1 ± 2.6 7.1 ± 1.2∗	2.1 ± 0.5 2.2 ± 0.3∗

Note: 50% inhibitory concentrations (means ± standard deviations) from at least three independent experiments.

^∗IC₅₀ values of the chlorido complexes were added as reference [5].