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Mini-Reviews in Medicinal Chemistry

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ISSN (Print): 1389-5575
ISSN (Online): 1875-5607

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Research Article

Ultrasound-assisted Synthesis of 6-substituted indolo[2,3-b]quinolines: their Evaluation as Potential Cytotoxic Agents

Author(s): Nagaraju Marepu, Mahesh Gosi, Santhoshi Sumana Vedula, Sunandamma Yeturu* and Manojit Pal*

Volume 19, Issue 7, 2019

Page: [599 - 608] Pages: 10

DOI: 10.2174/1389557518666180727170055

Price: $65

Abstract

Background: The indolo[2,3-b]quinoline framework is often found in various natural products displaying a range of pharmacological activities. This is an attractive template for the design and discovery of potential drugs especially for the identification of new anticancer agents.

Methods: The synthesis of 6-substituted indolo[2,3-b]quinolones was undertaken and carried out using a ultrasound assisted method involving two sequential C-N bond forming reactions between 3-(2- bromophenyl)-2-chloroquinoline and amines in a single pot in the presence of Pd(OAc)2 and a ligand (S)-BINAP. All the synthesized compounds were tested in vitro against two cancer cell lines e.g. MCF7 and HepG2 along with non-cancerous HEK293 cell lines.

Results: Two of these compounds showed promising and selective growth inhibition of MCF7 cell lines and one induced significant apoptosis in cancer (MCF7) cells.

Conclusion: Compounds based on indolo[2,3-b]quinolone framework may be useful for the identification of new cytotoxic agents thereby potential cure for breast cancer.

Keywords: Indolo[2, 3-b]quinoline, palladium, coupling, ultrasound, cytotoxicity, cancer cells.

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