![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
Two new cembrane diterpenoids, named populeuphrines A and B (1 and 2), together with three known analogues (3–5) were isolated from the resins of Populus euphratica. The planar structures and relative configurations of 1 and 2 were elucidated by detailed 1 D and 2 D NMR spectroscopic analyses. The absolute configurations of 1 and 2 were determined by X-ray diffraction analysis and quantum chemical computation. Biological activities of all the isolates against proliferation of human cancer cells and umbilical cord mesenchymal stem cells were evaluated.
Graphical Abstract
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
This study was supported by the National Science Fund for Distinguished Young Scholars (81525026) and National Key Research and Development Program of China (2017YFA0503900). We thank Lin-Hai Jiang and Hong-Bo Yang at Instrumental Analysis Center of Shenzhen University (Xili Campus) for their assistance with spectroscopic data collection.