A new lignan ligballinone 1 with the know ligbaUinol 2 were isolated from plant Gynostemma pentaphyllum. Their structures were determined through spectroscopic methods including ESI-MS, 1D and 2D NMR （^1H, ^13C, DEPT...A new lignan ligballinone 1 with the know ligbaUinol 2 were isolated from plant Gynostemma pentaphyllum. Their structures were determined through spectroscopic methods including ESI-MS, 1D and 2D NMR （^1H, ^13C, DEPT, ^1H-^1H COSY, HMQC, HMBC） and X-ray diffraction experiment for 2.展开更多
A new limonoid named rohituka-15 1, with a known limonoid dregeana-1 2, was isolated from the seed of Aphanamixis polystachya (Meliaceae). The 13C NMR data assignment of dregeana-1 2 and the structural elucidation of...A new limonoid named rohituka-15 1, with a known limonoid dregeana-1 2, was isolated from the seed of Aphanamixis polystachya (Meliaceae). The 13C NMR data assignment of dregeana-1 2 and the structural elucidation of the new compound 1 were based on spectral analysis including 1H-1H COSY, HMQC and HMBC experiments.展开更多
基金supported by Shanxi Scholarship Council of China.
文摘A new lignan ligballinone 1 with the know ligbaUinol 2 were isolated from plant Gynostemma pentaphyllum. Their structures were determined through spectroscopic methods including ESI-MS, 1D and 2D NMR （^1H, ^13C, DEPT, ^1H-^1H COSY, HMQC, HMBC） and X-ray diffraction experiment for 2.
文摘A new limonoid named rohituka-15 1, with a known limonoid dregeana-1 2, was isolated from the seed of Aphanamixis polystachya (Meliaceae). The 13C NMR data assignment of dregeana-1 2 and the structural elucidation of the new compound 1 were based on spectral analysis including 1H-1H COSY, HMQC and HMBC experiments.
