Table 4.

IC₅₀ values (µM) of tested compounds after 72 h treatment with human cancer cell lines.

Compounds	A172	AGS	CaCo-2	HeLa	HepG2
4b	63.385	32.210	>100	>100	>100
4c	>100	>100	>100	>100	>100
4d	>100	>100	>100	>100	>100