title: Two novel flavanes from the leaves of Morus alba L.
abstract: Two new flavanes, (2R,4S)-2',4'-dihydroxy-2H-furan-(3'',4'':8,7)-flavan-4-ol (1) and (2S)-2',4'-dihydroxy-7-methoxyl-8-butyricflavane (2), together with four known flavonoids, were isolated from the leaves of Morus alba L. Their structures were determined on the basis of spectroscopic analysis.
authors.affiliation: The Key Laboratory of Bioactive Substances and Resources Utilization of Chinese Herbal Medicine, Ministry of Education & Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Yang
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.forename: Lei
authors.initials: L
authors.lastname: Xiao
authors.forename: Ruo-Yun
authors.initials: RY
authors.lastname: Chen
mesh_terms: D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification*; D015394:Molecular Structure; D031625:Morus / Q000737:chemistry*; D019906:Nuclear Magnetic Resonance, Biomolecular; D018515:Plant Leaves / Q000737:chemistry; D013237:Stereoisomerism
chemical_list: C549291:(2R,4S)-2',4'-dihydroxy-2H-furan-(3'',4'':8,7)-flavan-4-ol; C549292:(2S)-2',4'-dihydroxy-7-methoxyl-8-butyricflavane; D004365:Drugs, Chinese Herbal; D005419:Flavonoids