Multisubstituted indole-acrylonitrile hybrids as potential cytotoxic agents

Area of Science:

• Medicinal Chemistry
• Organic Synthesis
• Pharmacology

Background:

• Cancer remains a leading cause of mortality worldwide.
• Development of novel anticancer agents is crucial, especially against drug-resistant cancer types.
• Indole derivatives have shown diverse biological activities, including anticancer effects.

Purpose of the Study:

• To design and synthesize novel multisubstituted indole-acrylonitrile hybrids.
• To evaluate the cytotoxic activities of these compounds against various human cancer cell lines.
• To identify potential lead compounds for the development of new anticancer drugs.

Main Methods:

• Synthesis of a series of multisubstituted indole-acrylonitrile hybrids.
• In vitro cytotoxic evaluation using standard cell lines (HepG2, BCG-823, BEL-7402, HL-7702).
• Assessment of activity against drug-resistant BEL-7402 cell lines (resistant to Taxol and 5-FU).

Main Results:

• Several synthesized compounds demonstrated moderate to good cytotoxic effects.
• Compounds 3a and 3k exhibited significant cytotoxic activity against the BEL-7402 cell line (IC50 values of 19.38±3.38 μM and 15.43±3.54 μM, respectively).
• These compounds were effective against BEL-7402 cells resistant to conventional chemotherapeutics like Taxol and 5-FU.

Conclusions:

• The designed indole-acrylonitrile hybrids show potential as cytotoxic agents.
• Compounds 3a and 3k are promising candidates for further development as anticancer drugs, particularly for resistant cancers.
• This scaffold may serve as a basis for novel anticancer agent discovery.