JOURNAL 1986
Records of Natural Products
VOLUME & ISSUE
Year: 2021 Issue: 6 November-December (Special Issue Dedicated to the Memory of Professor Ayhan Ulubelen)
Year: 2021 Issue: 6 November-December (Special Issue Dedicated to the Memory of Professor Ayhan Ulubelen)
PAGES
p.608 - 612
p.608 - 612
STATISTICS
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Viewed 1198 times.
GRAPHICAL ABSTRACT
ABSTRACT
Endophytic fungi are a substantial source of bioactive secondary metabolites. Present studies on Aspergillus nidulans―an endophytic fungus from Nyctanthes arbor-tristis Linn. afforded one new 1, 5-dihydroxy-3-methylxanthone-6-carboxylic acid methyl ester (1) and one known 5, 10-dihydro-phenazine-1-carboxylic acid (2) compound. The structures were elucidated by spectral techniques (Mass, 1D and 2D NMR), and their urease, carbonic anhydrase and prolyl endopeptidase inhibitory activities were evaluated. Compound 1 showed notable prolyl endopeptidase inhibition (IC50 = 3.13 ± 0.09 µM) and compound 2 showed significant carbonic anhydrase (IC50 =14.3 ± 1.05 µM) and urease (IC50 = 24.3 ± 1.15 µM) inhibition.
KEYWORDS- Aspergillus nidulans;
- Nyctanthes arbor-tristis;
- xanthone
