Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique
Abstract
:1. Introduction
2. Results and Discussion
No. | 1 | 2 | ||
---|---|---|---|---|
δC | δH | δC | δH | |
1 | 34.9, CH2 | 1.46 (1H, m, H-α) | 34.3, CH2 | 1.26 (1H, m, H-α) |
1.81 (1H, m, H-β) | 2.84 (1H, m, H-β) | |||
2 | 27.6, CH2 | 1.65 (1H, m, H-α) | 27.7, CH2 | 1.74 (2H, m) |
1.75 (1H, m, H-β) | ||||
3 | 78.1, CH | 3.26 (1H, dd, 11.6, 3.2) | 77.6, CH | 3.28 (1H, dd, 11.2, 4.4) |
4 | 39.1, C | 38.9, C | ||
5 | 49.9, CH | 1.61 (1H, overlapped) | 49.9, CH | 1.55 (1H, overlapped) |
6 | 36.8, CH2 | 2.39 (1H, m, H-α) | 35.6, CH2 | 2.55 (2H, m) |
2.44 (1H, m, H-β) | ||||
7 | 199.2, C | 205.6, C | ||
8 | 138.5, C | 150.1, C | ||
9 | 164.8, C | 154.8, C | ||
10 | 40.0, C | 40.1, C | ||
11 | 22.9, CH2 | 1.80 (1H, m, H-α) | 201.9, C | |
2.29 (1H, m, H-β) | ||||
12 | 30.7, CH2 | 1.79 (1H, m, H-α) | 52.2, CH2 | 2.82 (1H, d, 15.6, H-α) |
1.86 (1H, m, H-β) | 2.86 (1H, d, 15.6, H-β) | |||
13 | 45.5, C | 48.2, C | ||
14 | 48.1, C | 48.0, C | ||
15 | 31.6, CH2 | 1.77 (1H, m, H-α) | 72.3, CH | 4.34 (1H, dd, 14.4, 7.2) |
2.12 (1H, m, H-β) | ||||
16 | 23.8, CH2 | 1.26 (1H, m, H-α) | 33.7, CH2 | 1.55 (1H, m, H-α) |
2.25 (1H, m, H-β) | 2.21 (1H, m, H-β) | |||
17 | 51.0, CH | 1.80 (1H, m) | 48.4, CH | 1.82 (1H, m) |
18 | 17.4, CH3 | 0.83 (3H, s) | 17.3, CH3 | 0.86 (3H, s) |
19 | 18.6, CH3 | 1.16 (3H, s) | 17.5, CH3 | 1.29 (3H, s) |
20 | 75.3, C | 36.3, CH | 1.93 (1H, m) | |
21 | 26.3, CH3 | 1.28 (3H, s) | 18.4, CH3 | 0.89 (3H, s) |
22 | 42.8, CH2 | 1.56 (2H, m) | 34.5, CH2 | 1.17 (1H, m, H-α) |
2.56 (1H, m, H-β) | ||||
23 | 29.1, CH2 | 1.26 (1H, m, H-α) | 31.0, CH2 | 1.86 (1H, m, H-α) |
1.33 (1H, m, H-β) | 2.07 (1H, m, H-β) | |||
24 | 156.3, C | 156.3, C | ||
25 | 34.0, CH | 2.25 (1H, m) | 33.9, CH | 2.24 (1H, m) |
26 | 22.1, CH3 | 1.01 (3H, d, 6.6) | 22.0, CH3 | 1.01 (3H, d, 7.2) |
27 | 22.0, CH3 | 1.03 (3H, d, 6.6) | 21.9, CH3 | 1.03 (3H, d, 7.2) |
28 | 27.6, CH3 | 1.00 (3H, s) | 27.7, CH3 | 1.03 (3H, s) |
29 | 15.4, CH3 | 0.88 (3H, s) | 15.4, CH3 | 0.89 (3H, s) |
30 | 25.4, CH3 | 0.94 (3H, s) | 20.4, CH3 | 1.15 (3H, s) |
31 | 106.5, CH2 | 4.67 (1H, br s) | 106.6, CH2 | 4.65 (1H, br s) |
4.73 (1H, br s) | 4.72 (1H, br s) |
3. Experimental
3.1. General Information
3.2. Plant Material
3.3. Extraction and Isolation
3.4. Characterization of Compounds 1–2
3.5. Antimicrobial Activity Assay
4. Conclusions
Supplementary Materials
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Wang, L.-K.; Zheng, C.-J.; Li, X.-B.; Chen, G.-Y.; Han, C.-R.; Chen, W.-H.; Song, X.-P. Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique. Molecules 2014, 19, 7621-7628. https://doi.org/10.3390/molecules19067621
Wang L-K, Zheng C-J, Li X-B, Chen G-Y, Han C-R, Chen W-H, Song X-P. Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique. Molecules. 2014; 19(6):7621-7628. https://doi.org/10.3390/molecules19067621
Chicago/Turabian StyleWang, Liu-Kai, Cai-Juan Zheng, Xiao-Bao Li, Guang-Ying Chen, Chang-Ri Han, Wen-Hao Chen, and Xiao-Ping Song. 2014. "Two New Lanostane Triterpenoids from the Branches and Leaves of Polyalthia oblique" Molecules 19, no. 6: 7621-7628. https://doi.org/10.3390/molecules19067621