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Beilstein Arch. 2021, 202137. https://doi.org/10.3762/bxiv.2021.37.v1
Published 17 May 2021
Synthesis of a number of highly oxygenated furo[3,2-c]pyran-4-one (4, 5) and furo[3,2-c]chromen-4-one (8, 9) has been accomplished by a simple one pot reaction from easily available versatile starting materials - dehydroacetic acid and 3-acetyl-4-hydroxycoumarin. All the synthesized molecules were characterized utilizing various spectroscopic techniques and screened for anticancer activity (in vitro) against three Colon (HCT-116, SW-620, HT-24), Lung (A-549), Prostate-(PC-3), Breast-(MCF-7) cell lines. Compounds 5a, 9d, 9f showed good activity against breast MCF-7 cancer cell line having IC50 values 6.9, 2.8, 5.3 µM, respectively. Out of these compound 9d showed better activity against prostate PC-3 cell line with IC50 value 3.8 µM. The synthesized compounds were also studied for potential antibacterial activity (in vitro) using different strains of bacteria (Bacillus subtilis and Staphylococcus aureus -Gram-positive, and Escherichia coli- Gram negative) as well as fungal strains (Aspergillus niger and Candida albicans) using Norfloxacin and Fluconazole as antibacterial and antifungal standard drugs, respectively. The outcome of the antimicrobial screening study showed that compound 9f exhibited promising activity against S. aureus and B. subtilis while 5h showed excellent and 5i and 9b showed better activity against E. coli. The compounds 5c-5e displayed excellent activity against C. albicans and A. niger than Fluconazole.
Keywords: 3-Acetyl-4-hydroxycoumarin, anticancer, antimicrobial, dehydroacetic acid, furo[3,2-c]pyrone, furo[3,2-c]chromen-4-one
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Rani, S.; Kamra, N.; Thakral, S.; Kumar, D.; Singh, A.; Sangwan, P. L.; Singh, S. K. Beilstein Arch. 2021, 202137. doi:10.3762/bxiv.2021.37.v1
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