Lycofargesiines A-F, further Lycopodium alkaloids from the club moss Huperzia fargesii.
6α-hydroxylycopodine (PubChem CID: 21576178)
Huperzia fargesii
Lycofargesiines
Lycopodiaceae
Lycopodium alkaloids
N-methylhuperzine B (PubChem CID: 5489404)
anti-AChE
flabelline (PubChem CID: 101289809)
huperzine A (PubChem CID: 854026)
luciduline (PubChem CID: 442480)
lycopodine (PubChem CID: 5462445)
lycoposerramine J (PubChem CID: 11021729)
lycoposerramine X (PubChem CID: 101424895)
lycoposerramine Z (PubChem CID: 44550887)
Journal
Phytochemistry
ISSN: 1873-3700
Titre abrégé: Phytochemistry
Pays: England
ID NLM: 0151434
Informations de publication
Date de publication:
Jun 2019
Jun 2019
Historique:
received:
23
01
2019
revised:
22
02
2019
accepted:
20
03
2019
pubmed:
1
4
2019
medline:
17
5
2019
entrez:
1
4
2019
Statut:
ppublish
Résumé
Six undescribed Lycopodium alkaloids (LAs) comprising four lycodine-type (lycofargesiines A-D), one lycopodine-type (lycofargesiine E), and a phlegmarine-type (lycofargesiine F), together with 16 known ones were isolated from the club moss Huperzia fargesii. Their structures and absolute configurations were determined by extensive spectroscopic methods, electronic circular dichroism (ECD) analysis, and density functional theory (DFT) calculations. (7S,8R,12R,13R)-Lycofargesiine A is a rare naturally occurring LA possessing an exocyclic double bond between C-15 and C-16, with ring A being a rare 2,3-dihyropyridone motif. Lycofargesiine D is an uncommon lycodine-type alkaloid featuring a unique N-acetylated tetrahydropyridinyl segment (ring A), whereas lycofargesiine F is the first phlegmarane-type LA bearing two nitrone moieties. In addition to the isolated huperzine A in this study, another two isolates (lycofargesiine C and 16-hydroxyhuperzine A) were also found to show inhibitory activities against acetylcholinesterase (AChE), with IC
Identifiants
pubmed: 30928888
pii: S0031-9422(19)30060-3
doi: 10.1016/j.phytochem.2019.03.015
pii:
doi:
Substances chimiques
Alkaloids
0
Cholinesterase Inhibitors
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
183-192Informations de copyright
Copyright © 2019 Elsevier Ltd. All rights reserved.