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Abstract
One previously undescribed triterpene glycoside (1) and two known compounds were isolated from the leaves of Cyclocarya paliurus (2-3). Their structures were elucidated based on methods of spectroscopic analysis and NMR data comparison with those in the literature. Compound 1 showed a moderate inhibitory effect on melanogenesis with an IC50 value of 282.3 μM, with the positive drug arbutin showing an IC50 value of 168.5 μM.
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Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
This study was supported by the 2022 Basic Scientific Research Project of Liaoning Provincial Department of Education (LJKMZ20221318), and the 2021 school level Natural Science (key) project of Liaoning University of Traditional Chinese Medicine (2021LZY036, 2021LZY032).