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Synthesis of new O-alkyl and alkyne–azide cycloaddition derivatives of 4′-methoxy licoflavanone: a distinct prenylated flavonoids depicting potent cytotoxic activity

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Abstract

Prenylated flavonoids represent a unique class of naturally occurring compounds and have proved to be an important source of chemically diverse novel metabolites. Nevertheless, they possess wild array of biological activities. 4′-Methoxy licoflavanone is a prenylated flavonoid isolated from stem bark of Erytherina subrossa. Herein, we report the synthesis of O-alkyl analogs (2a2m) and 1,2,3 triazole conjugate (314) of 4′-methoxy licoflavanone by selective modification at C-7 position in the chromane nucleus. In addition, all the derivatives were evaluated for in vitro antiproliferative activity against a panel of cancer cell lines including pancreatic cancer (Mia PaCa-2), prostate cancer (PC-3), and human leukemia (HL-60) cells. The results revealed that some analogs including 2e and 2m exhibited better cytotoxicity effect than parent compound, specifically on Mia PaCa-2 cell lines.

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Acknowledgments

The research leading to these results has received financial support by the Council of Scientific and Industrial Research (CSIR) - India. The authors S. K and A. S. P are thankful to CSIR for providing Senior Research Fellowship. The authors further thank to the analytical department of our institute for providing analytical support.

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Correspondence to Asif Ali.

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Kumar, S., Pathania, A.S., Nalli, Y.K. et al. Synthesis of new O-alkyl and alkyne–azide cycloaddition derivatives of 4′-methoxy licoflavanone: a distinct prenylated flavonoids depicting potent cytotoxic activity. Med Chem Res 24, 669–683 (2015). https://doi.org/10.1007/s00044-014-1177-8

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  • DOI: https://doi.org/10.1007/s00044-014-1177-8

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