Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/37942
Title: Study on chemical constituents of the lichen parmotrema tinctorum (NYL.) hale
Authors: Nguyen, Thi Thu Tram
Vu, Thi Huyen
Pascal, Retailleau
Keywords: Atranorin
Lecanoric acid
Lichen
Parmotrema tinctorum
X-ray diffraction
Issue Date: 2018
Series/Report no.: Vietnam Journal of Science and Technology;Vol.56 – No.04 .- P.434–440
Abstract: A phytochemical investigation was conducted on foliose lichen, Parmotrema tinctorum (Nyl.) Hale, collected in Lam Dong province, Vietnam. Color reactions for identification of lichen substances (+ K deep yellow, +C red, +KC red, +P pale yellow) suggested the presence of atranorin, lecanoric acid, quinones, depsides, and xanthones containing two free hydroxyl groups in meta-position. In fact, six compounds, including atranol (1), methyl haematomate (2), divaricatinic acid (3), methyl divaricatinate (4), atranorin (5) and lecanoric acid (6) were isolated in the acetone extract, in which isolates (3) and (4) were reported for the first time in such species. Their structures were elucidated by X-ray diffraction or spectroscopic data and compared with those in references.
URI: https://dspace.ctu.edu.vn/jspui/handle/123456789/37942
ISSN: 2525-2518
Appears in Collections:Vietnam journal of science and technology

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