Two New Quinochalcone C-Glycosides from the Florets of Carthamus tinctorius
Abstract
:1. Introduction
2. Results and Discussion
2.1. Results
No. | 1 | 2 | ||
---|---|---|---|---|
δC (a) | δH (b) (Mult) | δC (a) | δH (a) (Mult) | |
1 | 190.9 | - | 191.5 | - |
2 | 106.4 | - | 106.2 | - |
3 | 197.0 | 18.23 br s (OH) | 196.6 | - |
4 | 85.6 | 4.83 br s (OH) | 85.4 | - |
5 | 185.6 | - | 184.8 | - |
6 | 99.7 | - | 99.9 | - |
7 | 179.7 | - | 180.4 | - |
8 | 120.3 | 7.28 d (15.5) | 120.7 | 7.29 d (15.5) |
9 | 140.5 | 7.45 d (15.5) | 140.2 | 7.33 d (15.5) |
1' | 127.9 | - | 127.9 | - |
2', 6' | 130.4 | 7.43 d (8.5) | 130.3 | 7.46 d (8.5) |
3', 5' | 116.0 | 6.82 (8.5) | 115.9 | 6.83 d (8.5) |
4' | 157.7 | 9.82 br s (OH) | 157.6 | - |
1" | 84.9 | 3.79 overlap | 84.9 | 3.82 overlap |
2" | 68.5 | 3.32 m | 68.2 | 3.34 m |
3" | 77.6 | 3.31 m | 77.5 | 3.32 m |
4" | 71.1 | 3.58 m | 71.3 | 3.56 m |
5" | 79.1 | 3.20 m | 78.7 | 3.30 m |
6" | 59.6 | 3.76 m 3.68 m | 59.6 | 3.77 m 3.68 m |
1''' | 30.2 | 31.2 | ||
2.64 d (14.5) | 2.68 d (14.5) | |||
2''' | 101.0 | - | 100.2 | - |
3''' | 70.7 | 3.71 m | 69.5 | 3.74 m |
4''' | 69.3 | 3.52 m | 69.3 | 3.85 m |
5''' | 66.3 | 3.75 m | 69.1 | 3.50 m |
6''' | 62.5 | 3.63 m 3.50 m | 63.2 | 3.81 m 3.48 m |
2.2. Discussion
3. Experimental Section
3.1. General Experimental Procedures
3.2. Plant Material
3.3. Extraction and Isolation
3.3.1. Hydroxysafflor Yellow B (1)
3.3.2. Hydroxysafflor Yellow C (2)
3.3.3. Supplementary Files
3.4. Biological Assay
3.4.1. Cell Culture
3.4.2. Cell Viability Test
3.4.3. Statistical Analysis
3.4.4. Sample Availability
4. Conclusions
Supplementary Materials
Supplementary Files
Supplementary File 1Acknowledgments
Author Contributions
Conflicts of Interest
References
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Yue, S.; Tang, Y.; Xu, C.; Li, S.; Zhu, Y.; Duan, J.-A. Two New Quinochalcone C-Glycosides from the Florets of Carthamus tinctorius. Int. J. Mol. Sci. 2014, 15, 16760-16771. https://doi.org/10.3390/ijms150916760
Yue S, Tang Y, Xu C, Li S, Zhu Y, Duan J-A. Two New Quinochalcone C-Glycosides from the Florets of Carthamus tinctorius. International Journal of Molecular Sciences. 2014; 15(9):16760-16771. https://doi.org/10.3390/ijms150916760
Chicago/Turabian StyleYue, Shijun, Yuping Tang, Chengmei Xu, Shujiao Li, Yue Zhu, and Jin-Ao Duan. 2014. "Two New Quinochalcone C-Glycosides from the Florets of Carthamus tinctorius" International Journal of Molecular Sciences 15, no. 9: 16760-16771. https://doi.org/10.3390/ijms150916760