title: Synthesis and in-vitro antitumor activities of some mannich bases of 9-alkyl-1,2,3,4-tetrahydrocarbazole-1-ones.
abstract: A novel series of 2-substituted aminomethyl-9-alkyl-1,2,3,4-tetrahydrocarbazole-1-ones 5a-q was synthesized via aminomethylation of 9-alkyl-1,2,3,4-tetrahydrocarbazole-1-ones 4a-e with hydrochlorides of the respective amines 6a-m. The structures of these newly synthesized compounds were characterized by (1)H-NMR, MS, and elemental analysis. All the compounds were tested for their cytotoxic activity in vitro against four human tumor cell lines including human non-small lung cancer cells (A549), human gastric adenocarcinoma (SGC), human colon cancer cell (HCT116), human myeoloid leukemia cells (K562), and one multi-drug resistant subline (KB-VCR). Most compounds showed moderate to potent cytotoxic activity against the tested cell lines. Preliminary mechanism research indicated that the most promising compound, 2-diethylaminomethyl-9-methyl-1,2,3,4-tetrahydrocarbazole-1-one 5c, exhibited a potential inhibitory effect against microtubule.
authors.affiliation: ZJU-ENS Joint Laboratory of Medicinal Chemistry, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Jianshu
authors.initials: J
authors.lastname: Lou
authors.forename: Tao
authors.initials: T
authors.lastname: Liu
authors.forename: Ru
authors.initials: R
authors.lastname: Wu
authors.forename: Xiaowu
authors.initials: X
authors.lastname: Dong
authors.forename: Qiaojun
authors.initials: Q
authors.lastname: He
authors.forename: Bo
authors.initials: B
authors.lastname: Yang
authors.forename: Yongzhou
authors.initials: Y
authors.lastname: Hu
mesh_terms: D000970:Antineoplastic Agents / Q000737:chemistry* / Q000494:pharmacology; D002227:Carbazoles / Q000138:chemical synthesis* / Q000494:pharmacology*; D045744:Cell Line, Tumor; D004354:Drug Screening Assays, Antitumor; D006801:Humans; D008352:Mannich Bases / Q000138:chemical synthesis / Q000494:pharmacology; D008870:Microtubules / Q000187:drug effects; D015394:Molecular Structure
chemical_list: D000970:Antineoplastic Agents; D002227:Carbazoles; D008352:Mannich Bases; C409925:1,2,3,4-tetrahydrocarbazole