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https://www.selleckchem.com/products/PP121.html t and long-standing persistent atrial fibrillation. Registration URL https//www.clinicaltrials.gov; Unique identifier NCT01984346.Numerous reports describe the antioxidant and antimicrobial activity of polyphenols-rich plant extracts. The aim of this study was to determine the total polyphenols content (TPC), and the in vitro (DPPH, FRAP and TEAC) antioxidant and antibacterial activity of leaves and wood of six native woody species (Aspidosperma quebracho-blanct, Sarcomphalus mistol, Geoffroea decorticans, Prosopis chilensis, Larrea divaricata and Larrea cuneifolia) from Catamarca. Also, the phenolic profile was determined in the species with higher activity. L. cuneifolia leaf extracts showed the highest antioxidant activity followed by L. divaricata and S. mistol, while S. mistol wood extracts showed the highest. Furthermore, Larrea species showed antibacterial activity against S. aureus and E. faecalis strains showing cidal effects mainly against S. aureus. Fifty-nine polyphenols were identified in leaves and wood of Larrea and S. mistol species, which are likely to be responsible for the different activities observed.Three new phenanthrenes were isolated from Pholidota chinensis Lindl. Their structures were elucidated on the basis of spectroscopic techniques and comparison of their data to the values reported in the literature. From the 95% EtOH extract, three new compounds, namely 9, 10-dihydro-2, 4, 6-trihydroxy-7-methoxyphenanthrene (1), 11-methoxyflaccidin (2), and 2-methoxy-3,7-dihydroxy-5H phenanthro[4,5-bcd] pyran (3), were identified. Compound 3 showed an MIC50 of 68.39 µM against Staphylococcus aureus subsp. Aureus.A new N-methoxy-1-pyridone alkaloid [chromenopyridin A (1)] and four known compounds (2-5) were isolated and identified from the endophytic fungus Penicillium nothofagi P-6, which was derived from the bark of the critically endangered conifer Abies beshanzuensis. Their structures were elucidated

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