Metajapogenins A–C, Pregnane Steroids from Shells of Metaplexis japonica
Abstract
:1. Introduction
2. Results and Discussion
3. Materials and Methods
3.1. General Experimental Procedures
3.2. Plant Material
3.3. Extraction and Isolation
4. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Sample Availability: Samples of the compounds are available from the authors. |
Position | 1 | 2 | 3 |
---|---|---|---|
1 | 32.6 | 32.7 | 36.4 |
2 | 23.5 | 23.5 | 31.8 |
3 | 139.4 | 139.5 | 69.8 |
4 | 127.5 | 127.5 | 43.0 |
5 | 164.2 | 164.3 | 171.0 |
6 | 124.0 | 123.7 | 126.0 |
7 | 203.0 | 203.4 | 202.5 |
8 | 48.5 | 48.4 | 48.0 |
9 | 43.4 | 43.2 | 44.0 |
10 | 36.2 | 36.2 | 38.3 |
11 | 31.8 | 30.9 | 31.8 |
12 | 67.2 | 69.4 | 67.3 |
13 | 59.3 | 57.9 | 59.2 |
14 | 87.8 | 87.5 | 87.7 |
15 | 31.6 | 30.9 | 31.9 |
16 | 33.6 | 31.8 | 33.6 |
17 | 91.7 | 87.6 | 91.7 |
18 | 7.8 | 9.2 | 7.8 |
19 | 16.5 | 16.4 | 17.4 |
20 | 209.1 | 73.1 | 209.1 |
21 | 27.7 | 18.3 | 27.8 |
Position | 1 | 2 | 3 |
---|---|---|---|
1 | 1.21 (1H, m) | 1.21 (1H, m) | 1.17 (1H, ddd, J = 13.7, 13.4, 3.5 Hz) |
1.80 (1H, m) | 1.81 (1H, m) | 1.86 (1H, m) | |
2 | 2.03 (1H, m) | 2.08 (1H, m) | 1.80 (1H, m) |
2.15(1H, m) | 2.14 (1H, m) | 2.18 (1H, m) | |
3 | 6.16 (1H, m) | 6.16 (1H, m) | 3.89 (1H, m) |
4 | 6.09 (1H, dd, J = 9.8, 1.9 Hz) | 6.09 (1H, br d, 9.8 Hz) | 2.60 (1H, m) |
2.75 (1H, m) | |||
6 | 5.80 (1H, s) | 5.80 (1H, s) | 5.87 (1H, s) |
8 | 2.82 (1H, d, J = 12.9 Hz) | 2.82 (1H, d, J = 12.9 Hz) | 2.71 (1H, d, J = 12.9 Hz) |
9 | 1.83 (1H, ddd, J = 12.9, 9.9, 3.0 Hz) | 1.83 (1H, ddd, J = 12.9, 9.9, 3.0 Hz) | 1.78 (1H, m) |
11 | 2.07 (1H, m) | 2.04 (1H, m) | 1.99 (1H, m) |
2.12 (1H, m) | 2.10 (1H, m) | 2.06 (1H, m) | |
12 | 3.78 (1H, dd, J = 11.4, 4.5 Hz) | 3.78 (1H, dd, J = 11.4, 4.5 Hz) | 3.79 (1H, m) |
15 | 1.72 (1H, m) | 1.75 (1H, m) | 1.75 (1H, m) |
1.90 (1H, m) | 2.06 (1H, m) | 1.92 (1H, m) | |
16 | 2.10 (1H, m) | 1.92 (1H, m) | 2.11 (1H, m) |
3.42 (1H, m) | 2.08 (1H, m) | 3.43 (1H, m) | |
18 | 1.70 (3H, s) | 1.70 (3H, s) | 1.69 (3H, s) |
19 | 1.01 (3H, s) | 1.00 (3H, s) | 1.12 (3H, s) |
20 | 4.28 (1H, m) | ||
21 | 2.62 (3H, s) | 1.60 (3H, d, J = 6.4 Hz) | 2.63 (3H, s) |
3-OH | 6.62 (1H, br s) | ||
12-OH | 6.41 (1H, br s) | 6.96 (1H, br s) | 6.44 (1H, br s) |
14-OH | 6.04 (1H, s) | 6.25 (1H, s) | 5.88 (1H, s) |
17-OH | 5.18 (1H, s) | 6.53 (1H, s) | 5.23 (1H, s) |
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Share and Cite
Yao, H.-L.; Liu, Y.; Liu, X.-H.; Gao, H.; Liu, K.; Shao, Y.-L.; Fang, X.-Y.; Wang, W. Metajapogenins A–C, Pregnane Steroids from Shells of Metaplexis japonica. Molecules 2017, 22, 646. https://doi.org/10.3390/molecules22040646
Yao H-L, Liu Y, Liu X-H, Gao H, Liu K, Shao Y-L, Fang X-Y, Wang W. Metajapogenins A–C, Pregnane Steroids from Shells of Metaplexis japonica. Molecules. 2017; 22(4):646. https://doi.org/10.3390/molecules22040646
Chicago/Turabian StyleYao, Hui-Li, Yang Liu, Xiao-Hong Liu, Hua Gao, Kun Liu, Yan-Lin Shao, Xin-Yu Fang, and Wei Wang. 2017. "Metajapogenins A–C, Pregnane Steroids from Shells of Metaplexis japonica" Molecules 22, no. 4: 646. https://doi.org/10.3390/molecules22040646