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Two new phenolic compounds from the Vietnamese lichen Parmotrema tinctorum
Van-Muoi Bui1, Thuc-Huy Duong2, Thi-Anh-Minh Nguyen3
1Department of Organic Chemistry, University of Science, National University - Ho Chi Minh City, Ho Chi Minh City, Vietnam.
Natural Product Research
|December 28, 2020
Abstract:
Chemical investigation of the lichen Parmotrema tinctorum (Nyl.) Hale led to the isolation of two new phenolic compounds, 2-ethylhexyl orsellinate (1) and tinctorinone (2). The structures were determined by analysis of their MS and NMR data as well as by comparison with literature data. The 2-ethylhexyl ester group of 2-ethylhexyl orsellinate is uncommon among lichen metabolites. Tinctorinone revealed strong inhibition towards α-glucosidase.
