4707-46-4Relevant articles and documents
Depsides: Lichen metabolites active against hepatitis C virus
Vu, Thi Huyen,Lamer, Anne-Cécile Le,Lalli, Claudia,Samson, Jo?l Boustie Michel,Dévéhat, Fran?oise Lohézic-Le,Seyec, Jacques Le
, (2015)
A thorough phytochemical study of Stereocaulon evolutum was conducted, for the isolation of structurally related atranorin derivatives. Indeed, pilot experiments suggested that atranorin (1), the main metabolite of this lichen, would interfere with the li
Method for synthesizing 2, 4-dihydroxy-3, 6-dimethyl methyl benzoate by using 4-O-demethylated barbatic acid
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Paragraph 0089-0095, (2020/05/30)
The invention provides a method for synthesizing 2,4-dihydroxy-3,6-dimethyl methyl benzoate (synthetic oak moss) by using 4-O-demethylated barbatic acid, and relates to the technical field of chemicalsynthesis. The technical scheme comprises: hydrolyzing 4-O-demethylated barbatic acid into 2,4-dihydroxy-3,6-dimethyl benzoic acid by adopting an acid hydrolysis or alkali hydrolysis method; carryingout a methyl esterification reaction with a methylation reagent by using 2,4-dihydroxy-3,6-dimethyl benzoic acid as a substrate; and treating after the reaction is finished so as to obtain 2,4-dihydroxy-3,6-dimethyl methyl benzoate (synthetic oak moss). According to the invention, the synthetic oak moss is synthesized by using the new intermediate through two-step synthesis, so that the synthesisprocess is simplified.
Chemical study on Garhwal Himalayan Lichen: Usnea emidotteries
Rawat,Shukla, Vertika,Negi, Sandeep,Pant
, p. 2566 - 2570 (2007/10/03)
Usnea species are medicinally important, so we take unexplored species, Usnea emidotteris. Seven components 2-hydroxy-3-methoxy-4, 6-dimethyl ethyl benzoate, 2, 4-dihydro-xy-3, 6-dimethyl ethyl benzoate, 2-hydroxy-4-methoxy-3, 6-dimethylbezoic acid, usnic