In vivo antitumor effects of compound 26 in MGC-803 bearing nude mice. MGC-803 cells were transplanted subcutaneously to the BALB-C nude mice and subjected to saline, hydroxypropyl-β-cyclodextrin (HP-β-CD) and compound 26 (5, 10, 20 mg/kg) for 21 days, respectively, and were then analyzed for tumor volume (A); (B) Represented tumors with the indicated treatment; (C) Tumor weight with the indicated treatment; (D) Body weight with the indicated treatment. *P < 0.05 was considered statistically significant, **P <0.01 was considered statistically highly significant. Data are mean±SD.