Dengratiols A-D, four new bibenzyl derivatives from Dendrobium gratiossimum.
Bibenzyls
Dendrobium gratiossimum
Dengratiols
Tropolone
Journal
Fitoterapia
ISSN: 1873-6971
Titre abrégé: Fitoterapia
Pays: Netherlands
ID NLM: 16930290R
Informations de publication
Date de publication:
Jul 2021
Jul 2021
Historique:
received:
21
02
2021
revised:
30
04
2021
accepted:
30
04
2021
pubmed:
16
5
2021
medline:
16
9
2021
entrez:
15
5
2021
Statut:
ppublish
Résumé
Dengratiol A (1), an unprecedented bibenzyl derivative bearing a tropolone unit together with three pairs of bibenzyl enantiomers (±)-dengratiols B-D [(±)-2-(±)-4], were isolated from Dendrobium gratiossimum Rchb.f. The resolution of enantiomers was performed with chiral HPLC. Their structures were characterized by extensive spectroscopic data analysis and calculated electronic circular dichroism (ECD). A hypothetical biosynthetic pathway for 1 is proposed. Biological assay revealed that (-)-2 showed moderate antiviral effect against IAV with IC
Identifiants
pubmed: 33991602
pii: S0367-326X(21)00101-5
doi: 10.1016/j.fitote.2021.104926
pii:
doi:
Substances chimiques
Antineoplastic Agents, Phytogenic
0
Bibenzyls
0
Phytochemicals
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
104926Informations de copyright
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