title: Synthesis of monomethylated dioscin derivatives and their antitumor activities.
abstract: All possible eight monomethylated dioscin derivatives (1-8) were synthesized. Their inhibitory activities against P388 and A-549 cells were determined, and the results indicate that six of the eight hydroxyls of dioscin are the 'key polar groupings' for tumor inhibitory activities.
authors.affiliation: State Key Laboratory of Catalyst, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.forename: Xiuwen
authors.initials: X
authors.lastname: Han
authors.forename: Biao
authors.initials: B
authors.lastname: Yu
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000138:chemical synthesis*; D002455:Cell Division / Q000187:drug effects; D004144:Diosgenin / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000494:pharmacology; D006801:Humans; D008745:Methylation; D051379:Mice; D012503:Saponins / Q000138:chemical synthesis / Q000494:pharmacology; D013329:Structure-Activity Relationship; D014407:Tumor Cells, Cultured
chemical_list: D000970:Antineoplastic Agents; D012503:Saponins; C019357:dioscin; D004144:Diosgenin