A series of new combretastatin urea derivatives (12a-j) were synthesized by reacting of substituted aromatic isocyanates (11a-j) to the combretastatin pyrazole-amine. The synthesized derivatives 11a-j were evaluated for their cytotoxicity against four human cancer cell lines (breast, lung and ovarian). Among them, compounds 12a, 12c, 12d, 12f, 12g and 12i were showed potent anticancer activity.
Combretastatin A-4, Sorafenib, Linifanib, Anticancer activity