A new guaiane sesquiterpene was isolated from Ligularia Nelumbifolia. Its structure was elucidated by spectroscopic methods including 2D-NMR techniques and showed to be 4 alpha ,9 alpha ,10 beta -tri-acetoxy-1 beta, 5...A new guaiane sesquiterpene was isolated from Ligularia Nelumbifolia. Its structure was elucidated by spectroscopic methods including 2D-NMR techniques and showed to be 4 alpha ,9 alpha ,10 beta -tri-acetoxy-1 beta, 5 alpha- guaia-6-ene (1).展开更多
Further phytochemical investigation of the roots of Ligularia nelumbi folia afforded six new sinapyl alcohol derivatives. Their structures were elucidated by high field NMR spectroscopy.
文摘A new guaiane sesquiterpene was isolated from Ligularia Nelumbifolia. Its structure was elucidated by spectroscopic methods including 2D-NMR techniques and showed to be 4 alpha ,9 alpha ,10 beta -tri-acetoxy-1 beta, 5 alpha- guaia-6-ene (1).
文摘Further phytochemical investigation of the roots of Ligularia nelumbi folia afforded six new sinapyl alcohol derivatives. Their structures were elucidated by high field NMR spectroscopy.
