[Structure of typhic acid].
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Chemical Phenomena↗
Biomedical subjects
D Q Yu
Publications and source records attributed to D Q Yu.
[Studies on the chemical constituents of Chrysanthemum indicum L].
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Animals↗
[The quaternary alkaloid of rauwolfia venticillata (Lour.) Baill var. hainanensis Tsiang. Studies on the structure of macrospegatrine].
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Chemical Phenomena↗
[Studies on the quaternary alkaloids of Rauwolfia verticillata (Lour.) Baill var. hainanensis Tsiang].
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Adrenergic alpha-Antagonists↗
[The structure of lactiflorasyne isolated from Artemisia lactiflora wall].
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Chemical Phenomena↗
[Chemical studies on the quaternary alkaloids of Rauvolfia verticillata (Lour.) Baill. F. ruberocarpa H. T. Chang. mss].
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Adrenergic alpha-Antagonists↗
[Studies on the constituents of Patrinia villosa].
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Chemical Phenomena↗
[Studies on the chemical constituents of Artemisia rupestris L].
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Azulenes↗
[The structure determination of a new alkaloid nauclefiline in Nauclea officinalis].
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Alkaloids↗
[Structures of spirasine IV, spirasine IX and spirasine XI, three new diterpene alkaloids from Spiraea japonica L. f. var. fortunei (phanchon) Rehd].
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Alkaloids↗
[Use of 2D-NMR spectroscopy in natural medicinal chemistry].
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Chemistry, Pharmaceutical↗
Chemical constituents of Armillaria mellea mycelium. I. Isolation and characterization of armillarin and armillaridin.
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Agaricales↗
[The structure of ambinine isolated from Corydalis ambigua Cham. et Schltd].
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Alkaloids↗
[The isolation and structure of a sapogenin from Gua Zi Jin (Polygala japonica Houtt)].
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China↗
[Chemical studies on the weak alkaloids of Rauwolfia verticillata (Lour) Baill. F. rubrocarpa H. D. Zhang mss].
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Plants, Medicinal↗
[Studies on the antiinflammatory principle of musk (author's transl)].
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Anti-Inflammatory Agents↗
Structures of two nortriterpenoid saponins from Stauntonia chinensis.
Two new nortriterpenoid saponins, designated yemuoside YM8 [1] and yemuoside YM9 [2], were isolated from Stauntonia chinensis. A new saponin 3 was obtained from the cleavage of the ester-glycoside linkage of 1 or 2. Structures were elucidated on the basis of chemical and physicochemical evidence.
Molecular Structure↗
Yemuoside I, a new nortriterpenoid glycoside from Stauntonia chinensis.
A new nortriterpenoid glycoside, named yemuoside [I] was isolated from Stauntonia chinensis. On the basis of chemical and spectral evidence, it structure was determined as 3-O-[alpha-L-arabinopyranosyl-(1----3)-alpha-L-rhamnopyranosyl-(1- ---2)-alpha-L-arabinopyranosyl]-30-noroleana-12,20(29)-di en-28-oic acid 28-O-[beta-D-glucopyranosyl-(1----6)-beta-D-glucopyranosyl] ester.
Acetylation↗