Two new neolignans from the stems of Euonymus oblongifolius.
Two new neolignans, (+)-(7R,8R)-4-hydroxy-3,3',5'-trimethoxy-8',9'-dinor-8,4'- oxyneoligna-7,9-diol-7'-aldehyde (1) and (-)-(7S,8R)-4-hydroxy-3,3',5'-trimethoxy-8', 9'-dinor-8,4'-oxyneoligna-7,9-diol-7'-aldehyde (2), were isolated from the stems of Euonymus oblongifolius. Their chemical structures were determined according to HR-ESI-MS, CD, 1D and 2D NMR spectroscopic analyses.
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.
Fei
F
Li
Chuang-Jun
CJ
Li
Jing-Zhi
JZ
Yang
Dong-Ming
DM
Zhang
D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D029756:Euonymus / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D018547:Plant Stems / Q000737:chemistry; D013237:Stereoisomerism
C576110:(+)-(7R,8R)-4-hydroxy-3,3',5'-trimethoxy-8',9'-dinor-8,4'-oxyneoligna-7,9-diol-7'-aldehyde; D004365:Drugs, Chinese Herbal; D017705:Lignans