Spiroorthoester group-containing pregnane glycosides from the root barks of Periploca chrysantha and their inhibitory activities against the proliferation of B and T lymphocytes
- Bioorg Med Chem Lett. 2018 Feb 1;28(3):330-333. doi: 10.1016/j.bmcl.2017.12.045.
- 1. Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, People's Republic of China.
- 2. Shanghai University of Traditional Chinese Medicine, No. 1200 Cailun Road, Shanghai 201210, People's Republic of China.
- 3. Gansu Forestry Technological College, No. 58 Mapaoquan Road, Tianshui, Gansu 741020, People's Republic of China.
- 4. State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China. Electronic address: [email protected].
- 5. Department of Natural Products Chemistry, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, People's Republic of China. Electronic address: [email protected].
Phytochemical investigation of the root barks of Periploca chrysantha D. S. Yao, X. C. Chen et J. W. Ren (Asclepiadaceae) led to the elucidation of four new spiroorthoester group-containing pregnane glycosides (1-4), named periplosides W-Y and 3-O-formyl-periploside F. Their structures were elucidated on the basis of extensive spectroscopic analysis. The four new pregnane glycosides (1-4) were found to exhibit significantly inhibitory activities against the proliferation of B and T lymphocytes and favorable selective index comparable to those of cyclosporin A.