title: Synthesis and cytotoxicity of water soluble quaternary salt derivatives of camptothecin.
abstract: In an effort to improve the water solubility of camptothecin, 16 water soluble 10-substituted quaternary ammonium salt derivatives of camptothecin were prepared. Their antitumor activity was evaluated on cancer cells in vitro. All of these salts possess lower cytotoxicities than CPT in comparison. The camptothecin salts 16, 20 showed similar cytotoxic activity to topotecan. Especially the salts 21 showed similar cytotoxic activity to CPT in vitro.
authors.affiliation: Key Laboratory of Forest Plant Ecology (Northeast Forestry University), Ministry of Education, Harbin 150040, China. zygorl@public.hr.hl.cn
authors.forename: Yuan-gang
authors.initials: YG
authors.lastname: Zu
authors.forename: Qing-yong
authors.initials: QY
authors.lastname: Li
authors.forename: Yu-jie
authors.initials: YJ
authors.lastname: Fu
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
mesh_terms: D002166:Camptothecin / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry / Q000494:pharmacology; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects*; D006801:Humans; D007624:KB Cells; D015394:Molecular Structure; D012492:Salts / Q000494:pharmacology; D012995:Solubility; D013329:Structure-Activity Relationship; D014867:Water
chemical_list: D012492:Salts; D014867:Water; D002166:Camptothecin