β-Orcinol-type depsides from the lichen Thamnolia vermicularis.
A phytochemical investigation of a herb tea made from Thamnolia vermicularis led to the isolation of three new β-orcinol-type depsides (1, 2 and 3), along with seven known compounds hypothamnolic acid (4), 3'-methylevenic acid (5), baeomycesic acid (6), squamatic acid (7), methyl 3'-methyllecanorate (8), barbatinic acid (9) and atranorin (10). The structures of the new compounds were determined on the basis of spectroscopic evidence, including 1-D and 2-D NMR and ESI-MS techniques.
School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
Wen-Juan
WJ
Xiang
Qi-Qi
QQ
Wang
Lei
L
Ma
Li-Hong
LH
Hu
D001203:Ascomycota / Q000737:chemistry*; D001565:Benzoates; D001628:Beverages / Q000032:analysis; D053630:Depsides / Q000737:chemistry* / Q000302:isolation & purification; D062385:Hydroxybenzoates / Q000302:isolation & purification; D008011:Lichens / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D012118:Resorcinols / Q000737:chemistry; D021241:Spectrometry, Mass, Electrospray Ionization
D001565:Benzoates; D053630:Depsides; D062385:Hydroxybenzoates; D012118:Resorcinols; C496299:baeomycesic acid; C026304:atranorin; C005282:orcinol