6 Result(s)
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Gui-Hua Tang
English
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Article
Open AccessNew halimane and clerodane diterpenoids from Croton cnidophyllus
Three new halimane furanoditerpenoids (1–3) and three new clerodane furanoditerpenoids (4–6), along with seven known terpenoids including four pimarane diterpenoids (7–10) and three norisoprenoids (11–13) were is...
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Open AccessFive new limonoids isolated from Walsura robusta
Five new toosendanin limonoids with highly oxidative furan ring walsurobustones A-D (1–4), and one new furan ring degraded limonoid walsurobustone E (5) together with one known compound toonapubesic acid B (6) we...
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Open AccessMulberry Diels–Alder-type adducts: isolation, structure, bioactivity, and synthesis
Mulberry Diels–Alder-type adducts (MDAAs) are unique phenolic natural products biosynthetically derived from the intermolecular [4 + 2]-cycloaddition of dienophiles (mainly chalcones) and dehydroprenylphenol d...
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Open AccessPsiguajadials A–K: Unusual Psidium Meroterpenoids as Phosphodiesterase-4 Inhibitors from the Leaves of Psidium guajava
Bioassay-guided fractionation of the ethanolic extract of the leaves of Psidium guajava led to the isolation of 11 new Psidium meroterpenoids, psiguajadials A–K (1–11), along with 17 known ones (12–28). Their str...
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Open AccessTwo new tirucallane triterpenoids from Aphanamixis grandifolia
Two new tirucallane triterpenoids, 2 α-ethoxy-2,3-secotirucalla-2,29-epoxy-7-ene-23-oxo-3-oic acid (1) and (23E)-2 α-hydroxytirucalla-7,23,25-triene-3-one (2), along with the known 2,3-secotirucalla-2,3;2,29-diep...
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Open AccessLimonoids and triterpenoids from the twigs and leaves of Dysoxylum hainanense
Four new limonoids, dysohainanins A–D (1–4), and two new triterpenoids, dysohainanins E and F (5 and 6), together with seven known ones were isolated from the twigs and leaves of Dysoxylum hainanense Merr. The st...
