β-Orcinol Metabolites from the Lichen Hypotrachyna revoluta
Abstract
:Introduction
Results and Discussion
1 | 2 | 3 | 4a | 5 | ||||||
δC | δH | δC | δH | δC | δH | δC | δH | δC | δH | |
1 | 114.5 | 114.4 | 113.7 | 113.9 | ||||||
2 | 163.2 | 161.3 | 159.3 | 160.1 | ||||||
3 | 100.9 | 6.73 (brs) | 113.6 | 121.5 | 114.6 | |||||
4 | 161.6 | 163.33 | 160.8 | 163.6 | ||||||
4-OCH3 | 56.0 | 3.82 (s) | 56.6 | 3.96 (s) | 56.2 | 3.91 (s) | 56.7 | 3.98 (s) | 56.5 | 3.95 (s) |
5 | 111.3 | 6.58 (brs) | 111.7 | 6.74 (s) | 112.6 | 6.65 (s) | 112.4 | 6.81 (s) | 112.0 | 6.73 (s) |
6 | 144.9 | 151.1 | 144.7 | 151.7 | ||||||
7 | 169.3 | nd | nd | nd | ||||||
8 | 22.6 | 2.44 (s) | 22.4 | 2.56 (s) | 21.5 | 2.51 (s) | 22.2 | 2.55 (s) | 22.1 | 2.54 (s) |
9 | 187.2 | 10.45 (s) | 53.6 | 4.79 (s) | 186.9 | 10.47 (s) | 187.3 | 10.47 (s) | ||
1’ | 107.2 | 106.9 | 104.8 | 107.2 | ||||||
2’ | 152.9 | 152.2 | 151.8 | 152.0 | ||||||
3’ | 120.9 | 117.7 | 119.9 | 121.4 | ||||||
4’ | 150.1 | 148.9 | 149.4 | 149.3 | ||||||
5’ | 101.3 | 7.17 (s) | 134.0 | 131.6 | nd | |||||
6’ | nd | 137.1 | 134.3 | 132.2 | ||||||
7’ | 164.4 | 171.8 | 172.3 | 169.0 | ||||||
8’ | 58.6 | 5.31
(d, J=13.2) 5.17 (d, J=13.2) | 70.1 | 5.43 (s) | 67.1 | 5.64 (s) | 109.4 | 6.35 (s) | 102.3 | 6.38 (s) |
9’ | 8.9 | 2.20 (s) | 8.9 | 2.27 (s) | 9.0 | 2.27 (s) | 55.1 | 4.90 (s) | 9.1 | 2.27 (s) |
2’-OH | nd | 7.95 (brs) | 7.87 (brs) | nd | 7.87 (brs) | |||||
8’-OCH3 | 57.4 | 3.65 (s) | 57.5 | 3.68 (s) |
- nd = not detected
- a 13C-NMR assignments from indirect HMQC detection, due to insufficient sample quantities.
Radical scavenging activity
Metabolite | Radical scavenging activity (expressed as Trolox® equivalents) # |
---|---|
1 | 85.14 ± 0.60 |
2 | 13.76 ± 1.14 |
3 | not active |
5 | 61.85 ± 1.65 |
6 | 7.63 ± 0.68 |
7 | 104.34 ± 2.70 |
9 | 11.85 ± 0.64 |
Experimental
General
Plant material
Extraction and Isolation
Hydroxyl radical - scavenging activity (CL)
Acknowledgments
References
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Papadopoulou, P.; Tzakou, O.; Vagias, C.; Kefalas, P.; Roussis, V. β-Orcinol Metabolites from the Lichen Hypotrachyna revoluta. Molecules 2007, 12, 997-1005. https://doi.org/10.3390/12050997
Papadopoulou P, Tzakou O, Vagias C, Kefalas P, Roussis V. β-Orcinol Metabolites from the Lichen Hypotrachyna revoluta. Molecules. 2007; 12(5):997-1005. https://doi.org/10.3390/12050997
Chicago/Turabian StylePapadopoulou, Panagiota, Olga Tzakou, Constantinos Vagias, Panagiotis Kefalas, and Vassilios Roussis. 2007. "β-Orcinol Metabolites from the Lichen Hypotrachyna revoluta" Molecules 12, no. 5: 997-1005. https://doi.org/10.3390/12050997