Pressalanin B (1), (–)-anonaine (2), (–)-asimilobine (3), (–)-N-acetylanonaine (4), liriodenine (5), stearic acid (6), 6β-hydroxystigmast-4-en-3-one (7), 6β-hydroxystigmast-4,22-dien-3-one (8), costunolide (9), 11,13-dehydrolanuginolide (10), N-trans-feruloyltyramine (11), N-trans-caffeoyltyramine (12), N-cis-caffeoyltyramine (13), p-hydroxybenzoic acid (14), p-hydroxybenzaldehyde (15), methylparaben (16), and vanillin (17) were isolated from the flowers of Michelia compressa var. lanyuensis (Magnoliaceae). Among them, pressalanin B is a new 2H-pyran. The structures of these compounds were characterized and identified by spectral analyses.
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Acknowledgment
This investigation was supported by a grant from the National Science Council of the Republic of China (NSC 96-2320-B-242-005).
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Published in Khimiya Prirodnykh Soedinenii, No. 3, May–June, 2020, pp. 370–372.
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Liu, S.L., Tsai, Y.S., Chen, C.T. et al. A New 2H-pyran from Michelia compressa var. Lanyuensis. Chem Nat Compd 56, 427–429 (2020). https://doi.org/10.1007/s10600-020-03054-7
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DOI: https://doi.org/10.1007/s10600-020-03054-7