A new dimethoxy dihydrochalcone isolated from the shoots of Empetrum nigrum L.

• Main Authors: Ponkratova, Anastasiia O., Whaley, Andrei K., Orlova, Anastasia A., Smirnov, Sergey N., Serebryakov, Evgeny B., Proksch, Peter, Luzhanin, Vladimir G.
• Format: Text
• Language: unknown
• Published: Taylor & Francis 2021
• Subjects: Pharmacology; 39999 Chemical Sciences not elsewhere classified; FOS Chemical sciences; Ecology; FOS Biological sciences; Immunology; FOS Clinical medicine; 69999 Biological Sciences not elsewhere classified; Developmental Biology; Empetrum nigrum
• Online Access: https://dx.doi.org/10.6084/m9.figshare.14540576; https://tandf.figshare.com/articles/journal_contribution/A_new_dimethoxy_dihydrochalcone_isolated_from_the_shoots_of_i_Empetrum_nigrum_i_L_/14540576

A new dihydrochalcone, 2',4'-dimethoxydihydrochalcone ( 1 ), together with 7 known compounds, 2',4'-dihydroxydihydrochalcone ( 2 ), 2'-hydroxy-4'-methoxydihydrochalcone ( 3 ), 2'-hydroxy-4'-methoxychalcone ( 4 ), 1-(3,5-dihydroxy-4-methoxyphenyl)-2-(3-hydroxyphenyl) ethane ( 5 ), 2,3,4,7-tetramethoxy-9,10-dihydrophenanthrene ( 6 ), 5-hydroxy-2,3,4-trimethoxy-9,10-dihydrophenanthrene ( 7 ) and 5,7-dihydroxy-6,8-dimethyl flavanone ( 8 ) were isolated from the shoots of Empetrum nigrum L. The structures of these compounds were elucidated using 1D and 2D NMR experiments along with HR-ESI-MS. Compound 6 is reported for the genus Empetrum for the first time.