Table 11.

Overview of the results of the in vitro anti-tumour screening for compounds 4a, 4b, 5a, 6a, and 7a–7g.

Thiazole Derivative	N° Cell Lines Tested	N° Active Cell Lines	GI50 Range (µM) a
4a	60	60	0.03–13.0
4b	59	59	0.04–14.2
5a	54	48	0.81–27.7
6a	59	59	0.93–4.70
7a	58	29	4.11–6.89
7b	59	59	4.45–5.98
7c	59	59	4.63–5.28
7d	60	60	4.87–7.50
7e	60	42	4.03–6.11
7f	59	9	4.01–7.56
7g	59	59	4.64–5.59

^a Concentration range that inhibits 50% net cell growth.