Two new labdane-type diterpenoids (1, 2) have been isolated from the aerial parts of Chromolaena sinuata var. viscigerum (Asteraceae), along with six other known secondary metabolites. The new structures were elucidated using spectroscopic and spectrometric data analyses, including 1D and 2D NMR, and by comparison with known spectral data.
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Acknowledgment
This work was supported by the Universidad Autonoma de Santo Domingo, UASD and also by program FONDOCYT (Grant 2013-1D4-003) of the Ministerio de Educacion Superior, Ciencia y Tecnologia (MESCYT), Dominican Republic. QAC thanks Dr. Lukasz Wojtas (University of South Florida, Tampa, Florida, United States of America) for his help in this project. JMP thanks the Canary Islands Government (ProID2020010101, ACIISI/FEDER, UE) for financial support.
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Published in Khimiya Prirodnykh Soedinenii, No. 2, March–April, 2023, pp. 247–249.
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Castillo, Q.A., Padron, J.M., Keramane, M. et al. Secondary Metabolites from Chromolaena sinuata var. viscigerum. Chem Nat Compd 59, 292–295 (2023). https://doi.org/10.1007/s10600-023-03980-2
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DOI: https://doi.org/10.1007/s10600-023-03980-2