A new triterpenoid and other compounds from lichens Cryptothecia faveomaculata Makhija & Patw

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.

Graphical Abstract

Keywords:

• Lichen
• triterpenoid
• steroid
• antibacterial

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.