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
The roots of Celastrus angulatus Maxim. are used in folk medicine for antipycetic and anti-wandering arthritis purpose. It also has been used as insecticide. The seven alkaloids were isolated from the root-bark of thi...The roots of Celastrus angulatus Maxim. are used in folk medicine for antipycetic and anti-wandering arthritis purpose. It also has been used as insecticide. The seven alkaloids were isolated from the root-bark of this plant. They are展开更多
The investigation on the insect antifeedant constituent in natural ecological system, provides not only the scientific evidence for exploring biochemical relationship between plant and insect, but also the new path fo...The investigation on the insect antifeedant constituent in natural ecological system, provides not only the scientific evidence for exploring biochemical relationship between plant and insect, but also the new path for creating new antifeedant pesticides. The fruit oil of the insecticidal plant angled bittersweet has marked antifeedant effect on yellow melon leaf展开更多
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.
文摘The roots of Celastrus angulatus Maxim. are used in folk medicine for antipycetic and anti-wandering arthritis purpose. It also has been used as insecticide. The seven alkaloids were isolated from the root-bark of this plant. They are
文摘The investigation on the insect antifeedant constituent in natural ecological system, provides not only the scientific evidence for exploring biochemical relationship between plant and insect, but also the new path for creating new antifeedant pesticides. The fruit oil of the insecticidal plant angled bittersweet has marked antifeedant effect on yellow melon leaf
