Three fructans (CoPS1, CoPS2 and CoPS3) vrere isolated from the root of Cyathula officinalis Kuan, a traditional Chinese medicine. The structures of the fructans were determined by methylation, reductive-cleavage meth...Three fructans (CoPS1, CoPS2 and CoPS3) vrere isolated from the root of Cyathula officinalis Kuan, a traditional Chinese medicine. The structures of the fructans were determined by methylation, reductive-cleavage method combined with GC-MS analysis, and 13C NMR spectroscopy. These results show that the fructans (CoPS1, CoPS2 and CoPS3) are graminan type fructans, and comprised of (2→1)- and (2→6)-linked β-D-fructofuranosyl backbone residues containing high branches.展开更多
基金Project supported by the Ministry of Science and Technology of China(No.9702110064-4).
文摘Three fructans (CoPS1, CoPS2 and CoPS3) vrere isolated from the root of Cyathula officinalis Kuan, a traditional Chinese medicine. The structures of the fructans were determined by methylation, reductive-cleavage method combined with GC-MS analysis, and 13C NMR spectroscopy. These results show that the fructans (CoPS1, CoPS2 and CoPS3) are graminan type fructans, and comprised of (2→1)- and (2→6)-linked β-D-fructofuranosyl backbone residues containing high branches.
