Aromatic Cadinane Sesquiterpenoids from the Fruiting Bodies of Phellinus pini Block SARS-CoV-2 Spike-ACE2 Interaction.
J Nat Prod
; 84(8): 2385-2389, 2021 08 27.
Article
in English
| MEDLINE | ID: covidwho-1634670
ABSTRACT
The ongoing COVID-19 global pandemic caused by SARS-CoV-2 inspires the development of effective inhibitors to block the SARS-CoV-2 spike-ACE2 interaction. A chemical investigation on the fruiting bodies of Phellinus pini led to the isolation of five aromatic cadinane sesquiterpenoids including four new ones, named piniterpenoids A-D (1-4), as well as three known lignans. Their structures were determined by extensive spectroscopic analysis including HRMS and 1D and 2D NMR. All of the aromatic cadinane sesquiterpenoids inhibited the SARS-CoV-2 spike-ACE2 interaction, with IC50 values ranging from 64.5 to 99.1 µM. A molecular docking study showed the disruption of the interaction of compound 1 via hydrogen interactions with Arg403, Asp405, and Arg408 of SARS-CoV-2 RBD and Arg393 and His34 residues of ACE2. These results suggested that aromatic cadinane sesquiterpenoids might be useful in developing agents for COVID-19.
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Antiviral Agents
/
Sesquiterpenes
/
Fruiting Bodies, Fungal
/
Spike Glycoprotein, Coronavirus
/
Polycyclic Sesquiterpenes
/
Phellinus
/
Angiotensin-Converting Enzyme 2
/
SARS-CoV-2
Limits:
Humans
Language:
English
Journal:
J Nat Prod
Year:
2021
Document Type:
Article
Affiliation country:
Acs.jnatprod.1c00426
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