Phenylpropanoid Esters of Rhamnose from Buddleja asiatica

✍ Scribed by Ya-Ping Liu; Xiang-Hai Cai; Wei-Qi Li; Xiao-Dong Luo

• Book ID: 102258813
• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: German
• Weight: 173 KB
• Volume: 91
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200890141

✦ Synopsis

Abstract

Four new phenylpropanoid esters of rhamnose, asiatisides A–D, along with the known compounds, buergeriside C~1~ (5), p‐methoxycinnamic acid, ferulic acid, and O‐methylferulic acid were obtained from the aerial parts of Buddleja asiatica Lour by chromatographic methods. The new compounds were elucidated as 3‐O‐acetyl‐4‐O‐(p‐methoxycinnamoyl)‐α‐L‐rhamnopyranose (1), 3‐O‐acetyl‐4‐O‐feruloyl‐α‐L‐rhamnopyranose (2), 2‐O‐acetyl‐4‐O‐(O‐methylferuloyl)‐α‐L‐rhamnopyranose (3), 2‐O‐acetyl‐4‐O‐(p‐methoxycinnamoyl)‐α‐L‐rhamnopyranose (4) by spectral data (1D‐, 2D‐NMR, and MS), respectively.