title: Two new stemona alkaloids from Stemona tuberosa Lour.
abstract: Two new pyrrolo[1,2-α]azepine-type stemona alkaloids, named as tuberostemonoxirine (1) and 9α-epi-tuberospironine (2), were isolated from the roots of Stemona tuberosa. The structures and relative configurations of new compounds were established on the basis of extensive spectroscopic evidences, especially 1D and 2D NMR and HR-MS experiments.
authors: State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
authors: Yong
authors: Y
authors: Yue
authors: An-Jun
authors: AJ
authors: Deng
authors: Dong-Sheng
authors: DS
authors: Xu
authors: Hai-Lin
authors: HL
authors: Qin
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018517:Plant Roots / Q000737:chemistry; D013141:Spiro Compounds; D041901:Stemonaceae / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D004365:Drugs, Chinese Herbal; D013141:Spiro Compounds; C511569:tuberospironine; C579835:tuberostemonoxirine