Chemical constituents from Psychotria arborea Hiern (Rubiaceae)

Judith Caroline Ngo Nyobe, Willifred Dongmo Tekapi Tsopgni, Jean Pierre Longue Ekon, Ali Ben Saida, Annie Guilaine Djuidje, Anicet Biwole Bengondo, Gisele Etame Loe, Guillaume Berionni, Desire Bikele Mama, Jean Claude Ndom, Emmanuel Mpondo Mpondo

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

Résumé

The chemical study of the stems extract of Psychotria arborea Hiern led to the isolation of thirteen compounds, including four anthraquinones: 2-methylanthracene-9,10-dione (1), 2-methoxyanthracene-9,10-dione (2), 2-hydroxy-3-methylanthracene-9,10-dione (3) and 3-hydroxy-1-methoxy-2-methylanthracene-9,10-dione (4); two diterpenes: ent-kaur-16-en-19-oic acid (5) and 15-acetoxy-ent-kaur-16-en-19-oic acid (6); two triterpenes, β-amyrin (8) and oleanolic acid (9), one flavonoid: Quercetin (7), three sterols: A mixture of stigmasterol (10) and β-sitosterol (11) and β-sitosterol-3-O-β-D-glucopyranoside (12) and one fatty acid (13). The structures of these compounds were elucidated based on NMR and HR-ESIMS analysis, further supported by comparison with previously reported spectral data. Compounds 1–4 and compounds 10–12 were tested for their antibacterial activity against three bacteria strains Escherichia coli, Staphylococcus aureus and Salmonella enterica. All these tested compounds were found to be inactive. Furthermore, the chemotaxonomic significance of the obtained compounds was discussed in detail.

langue originaleAnglais
Numéro d'article104212
journalBiochemical Systematics and Ecology
Volume94
Les DOIs
Etat de la publicationPublié - févr. 2021

Empreinte digitale

Examiner les sujets de recherche de « Chemical constituents from Psychotria arborea Hiern (Rubiaceae) ». Ensemble, ils forment une empreinte digitale unique.

Contient cette citation