Letters in Drug Design & Discovery

G. Perry
University of Texas
San Antonio, TX
USA
Email: lddd@benthamscience.org

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C5,C6-Disubstituted 1H-Indole-2-Carboxamides: Synthesis and Cytotoxic Activity in the Human Non-Small Lung Cancer Cell Line NSCLC-N16-L16

Author(s): Andrew Tsotinis, Maria Gerasimopoulou, Margarita Vlachou, Dimitri Moreau, Christos Roussakis.

Abstract:

A facile synthesis of the disubstituted 1H-indole-2-carboxamides (6a-h) is described. Readily available 4-benzyloxy-3-methoxybenzaldehyde is converted to the parent acid (12) by nucleophilic attack of the azido-ester (9) and cyclization of the propenoic methyl ester (10). The target compounds (6a-d) were obtained by amidation of (12) with the appropriate primary amine. The new 6-hydroxy analogs (6e-h) were prepared by benzyl deprotection of (6a-d). The cytotoxicity of the new molecules was evaluated in the human non-small lung cancer cell line NSCLC-N16-L16 in vitro. One compound (6d) showed satisfactory activity (IC50 = 13.9 μM) worthy of further study. It is noteworthy that few agents are clinically effective against human non-small lung cancer, and thus there is a need for novel agents for use in this disease.

Keywords: Disubstituted 1H-indole-2-carboxamides, synthesis, cytotoxicity

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Article Details

VOLUME: 3
ISSUE: 1
Year: 2006
Page: [14 - 16]
Pages: 3
DOI: 10.2174/157018006775240980