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Abstract
Ten compounds (1–10) were purified from the extract of lichens C. faveomaculata, and among these one new triterpenoid, cryptothecin A (1) was characterized through mass spectrometric and 2D NMR spectroscopic analyses. Some of the isolated compounds were assessed for their antimicrobial (1, 6, and 8) and cytotoxic activity (1, 4–5, and 7–9), but only weak inhibitory effects were observed.
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Disclosure statement
No potential conflict of interest was reported by the authors.
Additional information
Funding
The authors gratefully acknowledge grants from the Graduate University of Science and Technology (GUST), Vietnam Academy of Science and Technology (VAST), Ha Noi, Vietnam (No. GUST.STS.ĐT 2017-HH18) for the financial support of the present research.