A new sesquiterpene polyol ester, angulatin D, has been isolated from the root bark of Celastrus angulatus. The chemical structure is elucidated on the basis of spectral analysis.
One new sesquiterpene polyol eater named angulatin C was isolated from the root bark of Celastrus angulatus along with a known compound, angulatin B. Their structures were elucidated on the basis of spectral analysis.
A new sesquiterpene polyol ester was isolated from the leaves of Celastrus angulatus. Its structure was determined as 1 (beta), 2 (beta), 9 (a) -triacetoxy-8 (a) -((a) -hydroxyl-isobutyryloxy)-15-benzoyloxy-4 (a) -hyd...A new sesquiterpene polyol ester was isolated from the leaves of Celastrus angulatus. Its structure was determined as 1 (beta), 2 (beta), 9 (a) -triacetoxy-8 (a) -((a) -hydroxyl-isobutyryloxy)-15-benzoyloxy-4 (a) -hydroxy-dihydroagarofuran by means of NMR, MS and IR spectral analysis. Preliminary biological study on antitumor activity revealed that this compound showed strong nonselective cytotoxicity against four of the NCI panel cell lines.展开更多
A new β-dihydroagarofuran alkaloid Ⅰ was isolated from Celastrus angulatus.The structure was established on the basis of 1D and 2D NMR analysis,and x-ray diffraction.
Three new β-dihydroagarofuran sesquiterpene polyol esters,one alkaloid and two non-alkaloids,were isolated from the MeOH extract of seed oil of Celastrus angulatus. Their structures were elucidated on the basis of UV...Three new β-dihydroagarofuran sesquiterpene polyol esters,one alkaloid and two non-alkaloids,were isolated from the MeOH extract of seed oil of Celastrus angulatus. Their structures were elucidated on the basis of UV,IR,mass,NOE difference,~1H-NMR,^(13)C- NMR and ~1H-^(13)C long-range correlation spectroscopy.展开更多
An insecticidal sesquiterpene polyol ester,angulatin A,was isolated from the root bark of Celastrus angulatus.Its structure was established as 1α,2α-diacetoxy-8β,15-diisobutyryloxy-9α- benzoyloxy-4β,6β-dihydroxy...An insecticidal sesquiterpene polyol ester,angulatin A,was isolated from the root bark of Celastrus angulatus.Its structure was established as 1α,2α-diacetoxy-8β,15-diisobutyryloxy-9α- benzoyloxy-4β,6β-dihydroxydihyclro-β-agarofuran by spectroscopic methods.展开更多
文摘A new sesquiterpene polyol ester, angulatin D, has been isolated from the root bark of Celastrus angulatus. The chemical structure is elucidated on the basis of spectral analysis.
文摘One new sesquiterpene polyol eater named angulatin C was isolated from the root bark of Celastrus angulatus along with a known compound, angulatin B. Their structures were elucidated on the basis of spectral analysis.
文摘A new sesquiterpene polyol ester was isolated from the leaves of Celastrus angulatus. Its structure was determined as 1 (beta), 2 (beta), 9 (a) -triacetoxy-8 (a) -((a) -hydroxyl-isobutyryloxy)-15-benzoyloxy-4 (a) -hydroxy-dihydroagarofuran by means of NMR, MS and IR spectral analysis. Preliminary biological study on antitumor activity revealed that this compound showed strong nonselective cytotoxicity against four of the NCI panel cell lines.
文摘A new β-dihydroagarofuran alkaloid Ⅰ was isolated from Celastrus angulatus.The structure was established on the basis of 1D and 2D NMR analysis,and x-ray diffraction.
文摘Three new β-dihydroagarofuran sesquiterpene polyol esters,one alkaloid and two non-alkaloids,were isolated from the MeOH extract of seed oil of Celastrus angulatus. Their structures were elucidated on the basis of UV,IR,mass,NOE difference,~1H-NMR,^(13)C- NMR and ~1H-^(13)C long-range correlation spectroscopy.
文摘An insecticidal sesquiterpene polyol ester,angulatin A,was isolated from the root bark of Celastrus angulatus.Its structure was established as 1α,2α-diacetoxy-8β,15-diisobutyryloxy-9α- benzoyloxy-4β,6β-dihydroxydihyclro-β-agarofuran by spectroscopic methods.
