6 Result(s)
within
Life Sciences
Bioorganic Chemistry
Guo-**n Jiang
Article
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Article
Open AccessNew Iboga-Type Indole Alkaloids from Tabernaemontana divaricata
Two hitherto unknown iboga-type indole alkaloids, namely (3R)-7,19-di-epi-3-methoxytabernoxidine (1) and (3R,19R)-19-hydroxy-3-(2-oxopropyl)voacangine (2), together with eight known alkaloids (3–10), were isolate...
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Article
Open AccessAristolane-type Sesquiterpenoids from Nardostachys chinensis and Revised Structure of Aristolanhydride
Four hitherto unknown aristolane-type sesquiterpenes, including one novel 8,9-secoaristolane, namely secoaristolenedioic acid (1), two aristolone derivatives, namely 1α,2β-dihydroxyaristolone (2), 9-epidebilon (3
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Article
Open AccessIndole Alkaloids Inhibiting Neural Stem Cell from Uncaria rhynchophylla
Uncaria rhynchophylla is commonly recognized as a traditional treatment for dizziness, cerebrovascular diseases, and nervous disorders in China. Previously, the neuro-protective activitie...
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Open AccessChemical Constituents from the Stems of Manihot esculenta
Two new compounds, maniesculentins A (1) and B (6), together with four known ones were isolated from the stems of Manihot esculenta Crantz. The structures of the new compounds were elucidated by extensive spectro...
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Open AccessDaphmacrodins A and B, alkaloids from Daphniphyllum macropodum
Two new daphnicyclidin-type Daphniphyllum alkaloids, daphmacrodins A and B (1 and 2) were isolated from the leaves and stems of Daphniphyllum macropodum. Their structures were elucidated by extensive spectroscopi...
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Article
Effect of solute hydrogen bonding capacity on osmotic stability of lysosomes
The effect of solute hydrogen bonding capacity on the osmotic stability of lysosomes was examined through measurement of free enzyme activity of lysosomes after their incubation in sucrose and poly(ethylene gl...
