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    Three new sesquiterpene polyol ester compounds angulatins S-U, together with three known compounds were isolated from Celastrus angulatus Maxim. According to mainly 1D NMR and 2D NMR analysis, the structures of the new compounds were completely determined as angulatin S (1β-furoyloxy-2β,8α-diisobutanoyloxy-9β-benzoyloxy-15-acetoxy-4α,6α-dihydroxy-β-dihydroagarofuran), angulatin T (1β,2β,6α-triacetoxy-8β,15-diisobutanoyloxy-9α-benzoyloxy-β-dihydroagrofuran), and angulatin U (1β,6α,15-triacetoxy-8β-isobutanoyloxy-9α-benzoyloxy-β-dihydroagarofuran).


    Wei Zhao, Xia Chang, Hang Yuan, Hong-Yuan Han, Fei Chen, Huai-Yu Liao, Hai-Yan Zhang, Tian-Zeng Zhao. Three new sesquiterpene polyol esters from Celastrus angulatus. Journal of Asian natural products research. 2022 Apr;24(4):336-343

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    PMID: 34092159

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