A novel skeleton alkaloid from Portulaca oleracea L. and its bioactivities
- PMID: 37453700
- DOI: 10.1016/j.fitote.2023.105608
A novel skeleton alkaloid from Portulaca oleracea L. and its bioactivities
Abstract
A novel skeleton alkaloid was obtained from Portulaca oleracea L., which was identified as 10,11-dihydroxybenzo[5',6'] pentaleno[1',2':3,4]pyrrolo[2,1-b]oxazol-7(11bH)-one, named oleracone M, and its structure was determined using UHPLC-ESI-QTOF/MS, 1D NMR and 2D NMR spectroscopy, and circular dichroism. Then the bioactivities of the compound were investigated including the anti-inflammatory, anti-acetylcholinesterase and antioxidant activities. The results showed that the novel skeleton alkaloid exhibited the potent effect on inhibiting the secretion of IL-1β at 10 μM, anticholinesterase activity with IC50 value of 49.58 μM, and antioxidant activity with IC50 value of 66.43 μM.
Keywords: Alkaloid; Anti-acetylcholinesterase activity; Antioxidant activity; IL-1β; Portulaca oleracea L..
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Conflict of interest statement
Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.