Fig. 2From: Synthesis of acyl oleanolic acid-uracil conjugates and their anti-tumor activityCytotoxicity of 4c against Hep-G2 tumor cells and HL-7702 human liver cells. Hep-G2 and HL-7702 cells were cultured in medium in the presence of the indicated concentrations of 4c for 72 hBack to article page