title: Steroidal saponins from fresh stem of Dracaena cochinchinensis.
abstract: A further phytochemical investigation on the fresh stem of Dracaena cochinchinensis yielded 18 steroidal saponins. Fourteen of which are new compounds, designated as 25(R,S)-dracaenosides E-H, M, O-Q, dracaenosides I-L, R, and 25(S)-dracaenoside N. Their structures were determined by detailed spectroscopic analysis, including extensive 1D and 2D NMR data, and the result of hydrolytic reaction.
authors.affiliation: State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, PR China.
authors.forename: Qing-An
authors.initials: QA
authors.lastname: Zheng
authors.forename: Ying-Jun
authors.initials: YJ
authors.lastname: Zhang
authors.forename: Hai-Zhou
authors.initials: HZ
authors.lastname: Li
authors.forename: Chong-Ren
authors.initials: CR
authors.lastname: Yang
mesh_terms: D031409:Dracaena / Q000737:chemistry*; D006868:Hydrolysis; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*; D013256:Steroids / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; D013256:Steroids