the National Natural Science Foundation of China (No. 29972017)
Two new triterpenoids, lanost-9(11), 23Z(24)-dicnc-3β, 25-diol (1) and lanost-9(11), 25- diene-3β, 24-diol (2) were isolated from Mulgedium tataricum L. Their structures wcrc elucidated by spectral methods.
This work was financed by the National Natural Science Foundation of China(No.29972017)
A novel pentacyclic triterpenoid, petatrichol B, was isolated from the rhizome of Petasites tricholobus. Its structure was established by means of spectroscopic analysis (EIMS, HRSIMS, IR, 1D NMR and 2D NMR).
This work was supported by the National Natural Science Foundation of China(No.29972017).
Two new eremophilane sesquiterpenes, 15β-formic ether-6-oxo-furanoeremophilane (1) and 6α, 15β-epoxy eremophila-7(11)-en-8α, 12-olide (2) were isolation from the roots of Ligularia macrophylla. Their structu...
This work was supported by the NNSFC(No.29972017 and No.20021001一QT Program)
Two new ent-kaurenoids, 19-acetyl-ent-3β, 17-dihydroxykaur-15-ene (1), 19-acetyl-ent- 3β-hydroxykaur-15-en-17-al (2) were isolated from Cacalia pilgeriana. Their structures were elucidated by spectroscopic methods.
This work was supposed by the National Natural Science Foundation of China(No.29972017)
Two new acetylenic compounds were isolated from the roots of Asparagus gobicus. Their structures were elucidated by spectroscopic methods including 2D NMR techniques.
supoaed by the National Natural Science Foundation of China(No.29972017)
A new isopropenyl benzofuran-type tetramer was isolated from the roots of ligularia stenocephala and its structure was established by spectroscopic methods.