Isolation of compounds from the bark of Cryptocarya bracteolata yielded a new coumarin, 6,7,8-trimethoxy-3,4-dihydrocoumarin. The structure of the compound was elucidated from spectral data, including IR, UV, 1D NMR (13C, 1H, and DEPT), 2D NMR (HMQC, HMBC, and COSY), EI-MS, and ESI-MS techniques.
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Acknowledgment
This work was supported by the Technological and Professional Skill Development Sector Project, TPSDP, No. 465/J11/SPMU-TPSDP/2000 (Indonesian Government) and Vot F, No. F0142/2003B, PPF/FP092/2005C, and SAGA 66-02-03-0036 (Malaysian Government). We would like to specially honor Prof. A. Hadi (deceased), A. Hamid, and Mat Ropi Mukhtar for their contribution.
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Published in Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2020, pp. 691–692.
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Saidi, N., Awang, K. & Yahya, M. A New Coumarin from the Bark of Cryptocarya bracteolata. Chem Nat Compd 56, 803–805 (2020). https://doi.org/10.1007/s10600-020-03156-2
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DOI: https://doi.org/10.1007/s10600-020-03156-2