| Literature DB >> 17404997 |
X Z Feng1, C Kan, P Potier, S K Kan, M Lounasmaa.
Abstract
Ten monomeric indole alkaloids have been identified from the roots of KOPSIA OFFICINALIS. Four of them are known: (-)-kopsinine 1, (+)-5,22-dioxokopsane 2, (-)-tetrahydroalstonine 4, and (-)-quebrachamine 3; and six are new: (-)-isoeburnamine 5 (enantiomer of the known alkaloid (+)-isoeburnamine), (-)-N-methoxycarbonyl-12-methoxykopsinaline 7, (-)-N-methoxycarbonyl-11,12-methylenedioxy kopsinaline 8, (-)-N-methoxycarbonyl-11,12-dimethoxykopsinaline 9, (-)-11,12-methylenedioxykopsinaline 10, and (-)-12-methoxykopsinaline 11.Entities:
Year: 1983 PMID： 17404997 DOI： 10.1055/s-2007-969934
Source DB: PubMed Journal: Planta Med ISSN： 0032-0943 Impact factor: 3.352