A novel naphthoquinone (1) was isolated from the methanol extract of P. zeylanica roots in addition to a known compound plumbagin (2). Their structures were determined by UV, IR, MS, 1H, and 13C NMR spectroscopic analysis, including 2D NMR.
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Acknowledgment
Department of Chemistry, Faculty of Science, Banaras Hindu University, Varanasi, India, is acknowledged for infrastructural facilities as well as for the spectroscopic studies including UV, IR, 1H NMR, and 13C NMR spectroscopy. Central Drug Research Institute, Lucknow, India, is acknowledged for 2D NMR and mass spectrum of samples.
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Published in Khimiya Prirodnykh Soedinenii, No. 4, pp. 439–440, July–August, 2010.
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Kishore, N., Bhushan Mishra, B., Kumar Tiwari, V. et al. A novel naphthoquinone from Plumbago zeylanica roots. Chem Nat Compd 46, 517–519 (2010). https://doi.org/10.1007/s10600-010-9666-6
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DOI: https://doi.org/10.1007/s10600-010-9666-6