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.

中文翻译：

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来自越南地衣 Parmotrema tinctorum 的两种新酚类化合物

摘要

对地衣Parmotrema tinctorum (Nyl.) Hale 的化学研究导致分离出两种新的酚类化合物，2-乙基己基 orsellinate ( 1 ) 和 tinctorinone ( 2 )。通过分析它们的 MS 和 NMR 数据以及通过与文献数据的比较来确定结构。2-乙基己基或亚磺酸盐的 2-乙基己基酯基团在地衣代谢物中并不常见。Tinctorinone 对 α-葡萄糖苷酶有很强的抑制作用。