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Abstract
A new triarylindanone, namely selagindanone A (1), and a new isobenzofuranone (2), 3,4-bis(4-hydroxyphenyl)isobenzofuran-1(3H)-one, were isolated from Selaginella tamariscina. Their structures were elucidated by comprehensive spectroscopic and mass spectrometric analyses, including 1 D-, 2 D-NMR and HR-ESI-MS. Compound 1 possesses a unique structural feature of triaryl-substituted in the skeleton of 1-indanone. In addition, compound 2 showed weak cytotoxicity against human hepatocellular carcinoma SMMC-7721 and HepG2 cell lines.
Graphical Abstract
Acknowledgements
We would like to acknowledge the NMR measurements by the Modern Analysis and Testing Center of CSU.
Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
This work was supported by China Postdoctoral Science Foundation (2020M673289), Outstanding youth project of Education Department of Hunan Province (19B363), Natural Science Foundation of Hunan province (2018JJ2268 and 2019JJ50949), Scientific research project of changsha science and technology bureau (kq1907131) and Undergraduate Innovation Experiment Project of Hunan Normal University.