A new furost-20(22)-ene oligoglycoside named as aspacochioside C was isolated from the roots of Asparagus cochinchinensis (Lour.) Merr.. Its structure was elucidated to be 26-O-b- D-glucopyranosyl-(25S)-5b-furost-20(...A new furost-20(22)-ene oligoglycoside named as aspacochioside C was isolated from the roots of Asparagus cochinchinensis (Lour.) Merr.. Its structure was elucidated to be 26-O-b- D-glucopyranosyl-(25S)-5b-furost-20(22)-en-3b,26-diol-3-O-a-L-rhamnopyranosyl-(14)-b-D- glucopyranoside on the basis of spectroscopic techniques including 1D and 2D NMR experiments.展开更多
Two new lanosta triterpenoids, 3 beta,22 a -dihydroxy-lanosta-8,24E-diene-25-peroxide 3 beta,22 a,25-trihydroxy lanosta-8,24E-diene were isolated from the petroleum ether extracts of Fuscoporia obliqua and their struc...Two new lanosta triterpenoids, 3 beta,22 a -dihydroxy-lanosta-8,24E-diene-25-peroxide 3 beta,22 a,25-trihydroxy lanosta-8,24E-diene were isolated from the petroleum ether extracts of Fuscoporia obliqua and their structures had been determined by spectral data, chemical method and X-ray crystallographic analysis.展开更多
A new triterpenoid, urs-20-en-3 beta-acetoxy-22 alpha-ol, and three known compounds 3 beta-acetoxy-amyrin, 3 beta-acetoxy-lupeol, lupeol were isolated from the leaves of Crepis napifera (Franch.) Babe. Their structure...A new triterpenoid, urs-20-en-3 beta-acetoxy-22 alpha-ol, and three known compounds 3 beta-acetoxy-amyrin, 3 beta-acetoxy-lupeol, lupeol were isolated from the leaves of Crepis napifera (Franch.) Babe. Their structures were determined by means of spectroscopic studies.展开更多
文摘A new furost-20(22)-ene oligoglycoside named as aspacochioside C was isolated from the roots of Asparagus cochinchinensis (Lour.) Merr.. Its structure was elucidated to be 26-O-b- D-glucopyranosyl-(25S)-5b-furost-20(22)-en-3b,26-diol-3-O-a-L-rhamnopyranosyl-(14)-b-D- glucopyranoside on the basis of spectroscopic techniques including 1D and 2D NMR experiments.
文摘Two new lanosta triterpenoids, 3 beta,22 a -dihydroxy-lanosta-8,24E-diene-25-peroxide 3 beta,22 a,25-trihydroxy lanosta-8,24E-diene were isolated from the petroleum ether extracts of Fuscoporia obliqua and their structures had been determined by spectral data, chemical method and X-ray crystallographic analysis.
文摘A new triterpenoid, urs-20-en-3 beta-acetoxy-22 alpha-ol, and three known compounds 3 beta-acetoxy-amyrin, 3 beta-acetoxy-lupeol, lupeol were isolated from the leaves of Crepis napifera (Franch.) Babe. Their structures were determined by means of spectroscopic studies.