Dammaradienyl acetate

Liu, Rui; Wang, Xiao-Bing; Kong, Ling–Yi

doi:10.1107/s1600536806028340

Cited by 1 publication

(1 citation statement)

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“…The structures of 34 known compounds, including 24 benzofurans (6 [23], 7 [31], 8 [8], 9 [25], 10 [32], 11 [29], 12 [33], 13 [25], 15 [22,23], 16 [34], 18 [35], 19 [26], 20 [36], 22 [15,37], 23 [8], 24 [8], 27 [24], 28 [38], 29 [8], 30 [39], 33 [6], 35 [40], 37 [6], and 38 [6]), 4 thiophenes (40 [41], 41 [41], 42 [8], 43 [6]), 2 triterpenoids (44 [42] and 45 [43]), and 4 other aromatic compounds (46 [44], 47 [45], 48 [46], 49 [47]) were identified by comparing their NMR data with those reported in the literature (Figure 9).…”

Section: Structure Elucidationmentioning

confidence: 99%

New Benzofuran Oligomers from the Roots of Eupatorium heterophyllum Collected in China

Saito

Matsuo

et al. 2022

Molecules

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The chemical constituents of two root samples of Eupatorium heterophyllum DC. collected in Yunnan Province, China, were investigated. Five new oligomeric benzofurans (1–5), nine new benzofuran/dihydrobenzofuran derivatives, and a new thymol analog were isolated, and their structures were determined using extensive spectroscopic techniques, such as 1D and 2D NMR spectroscopy and DFT calculations of the CD spectra. Most of the new compounds, including oligomeric benzofurans (1–5), were obtained from only one of the root samples. Furthermore, this is the first example that produces oligomeric benzofurans in this plant. These results imply that diversification of secondary metabolites in E. heterophyllum is ongoing. Plausible biosynthetic pathways for 1–5 are also proposed.

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