Synthesis and pharmacological evaluation of novel bisindolylalkanes analogues
Ya-Li Song1, Yun-Fang Dong, Tao Yang
1Key Laboratory for Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Sciences, Hebei University, Wusi East Road No. 180, Baoding, Hebei 071002, China; Key Laboratory of Medical Chemistry and Molecular Diagnosis, Ministry of Education, Wusi East Road No. 180, Baoding, Hebei 071002, China.
Abstract:
In an effort to develop potent anti-cancer chemopreventive agents that act on topoisomerase II, a novel series of bisindolylalkanes analogues such as 3,3'-(thiochroman-4,4-diyl)bis(1H-indole) are synthesized. Structures of all compounds are elucidated by (1)H NMR, (13)C NMR and HRMS. Anti-proliferative activities for all of these compounds are investigated by the method of MTT assay on 7 human cancer lines. Most of them showed antitumor activities in vitro, the half maximal inhibitory concentration (IC50) value is 7.798 μg/mL of 3a against MCF7. Compound 3a showed comparable topoisomerase II inhibitory activity to etoposide (VP-16) at 100 μM concentration. The rest of the compounds also showed varying degree topoisomerase II inhibitory activity.
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