title: Antitumor agents. V. Effect of epoxidation on cytotoxicity of helenalin-related derivatives.
mesh_terms: D000970:Antineoplastic Agents / Q000494:pharmacology*; D055598:Chemical Phenomena; D002621:Chemistry; D004988:Ethers, Cyclic; D007783:Lactones; D013729:Terpenes
chemical_list: D000970:Antineoplastic Agents; D004988:Ethers, Cyclic; D007783:Lactones; D013729:Terpenes