A new auronolignan, named cotinignan B, was isolated from Cotinus coggygria Scop. Structure elucidation was performed on the basis of 1H, 13C NMR, COSY, NOESY, HSQC, and HMBC experiments, supported with HR-ESI-MS, IR and UV. Additional J-HMBC NMR experiment was essential to resolve the configuration of the trisubstituted double bond. This compound represents the secondly discovered natural compound belonging to the rare auronolignan type.
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The authors would like to thank the Ministry of Science, Technological Development and Innovation of the Republic of Serbia (contract number: 451-03-47/2023-01/200026) and Serbian Academy of Sciences and Arts (Grant No. F188).
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Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2023, pp. 364–366.
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Novakovic, M., Todorovic, N., Jadranin, M. et al. A New Auronolignan from the Cotinus coggygria Heartwood. Chem Nat Compd 59, 428–430 (2023). https://doi.org/10.1007/s10600-023-04016-5
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DOI: https://doi.org/10.1007/s10600-023-04016-5