Phytochemical investigation of Anaphalis lactea |
| |
Authors: | Ren Zhao-Yan Qi Huan-Yang Shi Yan-Ping |
| |
Institution: | State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou, People's Republic of China. |
| |
Abstract: | Four new compounds, 2',6'-dihydroxy-3'-(2-hydroxy-3-methyl-3-butenyl)-4'-methoxychalcone ( 1), 4,6-dihydroxy-7-isobutyryl-5-prenyl-2(3 H)-benzofuranone ( 4), 7- O-(beta- D-glucopyranosyloxy)-5-hydroxy-1(3 H)-isobenzofuranone ( 6) and (2 R,3 S)-3-methyl-2-(5-oxo-2-isopropenylhexyl)-cyclopentanone ( 7), along with thirteen known compounds were isolated from the whole plant of Anaphalis lactea. Their structures were established based on spectroscopic methods including IR, UV, MS, CD, 1 D NMR and 2 D NMR techniques. Compounds 2, 4 - 6 and 8 - 16 were tested for free-radical scavenging properties in the DPPH assays. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|