Two new phenolic compounds from the Vietnamese lichen Parmotrema tinctorum. Issue 13 (1st July 2022)

• Record Type: Journal Article
• Authors: Bui, Van-Muoi; Duong, Thuc-Huy; Nguyen, Thi-Anh-Minh; Nguyen, Thi-Ngoc-Van; Nguyen, Ngoc-Hong; Nguyen, Huu-Hung; Chavasiri, Warinthorn; Nguyen, Kim-Phi-Phung; Huynh, Bui-Linh-Chi
• Is Part Of: Natural product research. Volume 36:Issue 13(2022)
• Page Start: 3429
• Page End: 3434
• Publication Date: 2022-07-01
• Subjects: Lichen -- Parmotrema tinctorum -- depsidone -- tinctorinone -- methyl orsellinate; Natural products -- Periodicals; Natural products -- Research -- Periodicals; Biological Factors -- Periodicals; Biological Products -- Periodicals; 547
• DOI: 10.1080/14786419.2020.1864367
• Languages: English
• ISSNs: 1478-6419

Abstract

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. Graphical Abstract: UF0001