Isolation and identification of a new benzofuranone derivative from Usnea longissima.
A new benzofuranone derivative, ethyl 2-(3,3-bis(7-acetyl-4,6-dihydroxy-3,5-dimethylbenzofuran-2-yl)acryloyl) (1), together with seven known compounds (2-8), was isolated from Usnea longissima. Their structures were elucidated by using spectroscopic methods, including 1D and 2D NMR experiments, UV, IR, EI-MS and HR-ESI-MS analysis.
a Institute of Mycology, Engineering Research Centre of Edible and Medicinal Fungi, Ministry of Education, Jilin Agricultural University , Xincheng Street No. 2888, Changchun , Jilin 130118 , P.R. China.
Laxinamujila
L
Bai
Hai Ying
HY
Bao
Tolgor
T
Bau
D001572:Benzofurans / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D008986:Mongolia; D019906:Nuclear Magnetic Resonance, Biomolecular; D020949:Usnea / Q000737:chemistry*
D001572:Benzofurans; C000591579:ethyl 2-(3,3-bis(7-acetyl-4,6-dihydroxy-3,5-dimethylbenzofuran-2-yl)acryloyl)