A new compound, 2-(3-(4-hydroxyphenyl)-3-methoxypropyl)-5-methoxycyclohexa-2,5-diene-1,4-dione (1), was isolated from the heartwood of Dalbergia cochinchinensis along with 15 known compounds, 2,4-dihydroxy-5-methoxybenzophenone (2), 3,5-dimethoxy-4′ -hydroxy-trans-stilbene (3), 7,8-dihydroxyflavanone (4), 2,3-dimethoxyxanthone (5), medicarpin (6), galangin (7), 5,7-dihydroxy-2′,3′,4′- trimethoxyisoflavanone (8), 6-hydroxy-2-(2-hydroxy-4-methoxyphenyl)-benzofuran (9), 3′-O-methylviolanone (10), 2′,5,7-trihydroxy-4′-methoxyisoflavone (11), 7-hydroxy-6-methoxyflavone (12), formononetin (13), pterocarpol (14), 2′-hydroxyformonetin (15), and naringenin (16). Their structures were elucidated by spectroscopic means and comparison with published data. Compounds 1–5, 7–9, and 11 were isolated from Dalbergia L. for the first time, and compounds 1–11, 13, 15, and 16 were isolated from D. cochinchinensis for the first time.
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This work was supported by National Natural Science Foundation of China (No. 81360629).
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Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2016, pp. 356–358.
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Liu, RH., Li, YY., Shao, F. et al. A New Chalcone from the Heartwood of Dalbergia cochinchinensis . Chem Nat Compd 52, 405–408 (2016). https://doi.org/10.1007/s10600-016-1659-7
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DOI: https://doi.org/10.1007/s10600-016-1659-7