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Updated: Jun 24, 2026

Functionalized Spirocyclic Heterocycle Synthesis and Cytotoxicity Assay
Published on: February 9, 2021
Synthesis of potent antitumor and antiviral benzofuran derivatives
Shadia A Galal1, Amira S Abd El-All, Mohamed M Abdallah
1Department of Chemistry of Natural and Microbial Products, Division of Pharmaceutical and Drug Industries Research, National Research Centre, Cairo, Egypt.
Abstract:
A new series of potent antitumor and antiviral benzofuran derivatives was synthesized by the reaction of the furochromone-6-carboxaldehydes 1 and 2 with different heterocyclic amines to yield the benzofuran-5-carbonyl derivatives 4-11. The synthesized compounds 1, 3-11 were tested against twelve different human cancer cell lines and all of the compounds were more potent than the comparative standards. The HIV inhibitory activity of the tested compounds 1, 3-11 showed that they have higher potency than Atevirdine. Moreover, compound 6 was significantly potent with wider therapeutic index. The HIV-1 RT inhibitory activity showed that compounds 10, 11, 3 and 4 were notably potent but with lower therapeutic index than Atevirdine. The HCV NS3-4A protease inhibitor activity of the tested compounds revealed that they have weaker potency and less therapeutic index than VX-950, although compounds 1, 4, 9 and 6, respectively exhibited significant activity.
Insights
New benzofuran derivatives show potent antitumor and antiviral activities. These compounds are more effective than standard treatments against various cancers and HIV, with some exhibiting significant therapeutic potential.
Area of Science:
- Medicinal Chemistry
- Organic Synthesis
- Pharmacology
Background:
- Benzofuran derivatives are known for diverse biological activities.
- Developing novel anticancer and antiviral agents remains a critical research area.
Purpose of the Study:
- To synthesize and evaluate new benzofuran derivatives for antitumor and antiviral properties.
- To assess the potency and therapeutic index of synthesized compounds against cancer cell lines, HIV, and HCV.
Main Methods:
- Synthesis of benzofuran-5-carbonyl derivatives via reaction of furochromone-6-carboxaldehydes with heterocyclic amines.
- Antitumor activity screening against twelve human cancer cell lines.
- Antiviral assays for HIV inhibition, HIV-1 reverse transcriptase (RT) inhibition, and Hepatitis C Virus (HCV) NS3-4A protease inhibition.
Main Results:
- All synthesized compounds demonstrated superior potency compared to standard treatments against tested cancer cell lines.
- Compounds exhibited significant HIV inhibitory activity, outperforming Atevirdine, with compound 6 showing a wider therapeutic index.
- Certain compounds (10, 11, 3, 4) showed notable potency against HIV-1 RT, while compounds 1, 4, 9, and 6 displayed significant activity against HCV NS3-4A protease.
Conclusions:
- The synthesized benzofuran derivatives represent a promising new class of anticancer and antiviral agents.
- Compound 6 demonstrated significant potency and a favorable therapeutic index for potential antiviral applications.
- Further investigation into these derivatives could lead to novel therapeutic strategies for cancer and viral infections.
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