Chemical Constituents from the Roots of Schnabelia tetradonta

✍ Scribed by Hui Dou; Xun Liao; Shu-Lin Peng; Yuan-Jiang Pan; Li-Sheng Ding

• Publisher: John Wiley and Sons
• Year: 2003
• Tongue: German
• Weight: 113 KB
• Volume: 86
• Category: Article
• ISSN: 0018-019X
• DOI: 10.1002/hlca.200390230

✦ Synopsis

Abstract

The new rearranged‐abietane diterpene 1, the four new triterpenoids 2–5, and the new aminoethylphenyl oligoglycoside 6, besides 19 known compounds, were isolated from the roots of Schnabelia tetradonta, a Chinese endemic herb. The structures of the new compounds were elucidated on the basis of spectroscopic evidence as 12,17‐epoxy‐11,14,16‐trihydroxy‐17(15→16)‐abeo‐abieta‐8,11,13,15‐tetraen‐7‐one (1), 21__β__‐(β‐D‐glucopyranosyloxy)‐2__α__,3__α__‐dihydroxyolean‐12‐en‐28‐oic acid (2), 2__β__,3__β__,16__β__‐trihydroxy‐15‐oxo‐28‐norolean‐12‐en‐23‐oic acid (3), 3__β__‐[(4‐O‐acetyl‐β‐D‐glucopyranuronosyl)oxy]‐2__β__,16__β__‐dihydroxy‐28‐norolean‐15‐oxo‐12‐en‐23‐oic acid (4), 3__β__‐[(4‐O‐acetyl‐6‐O‐methyl‐β‐D‐glucopyranuronosyl)oxy]‐2__β__,16__β__‐dihydroxy‐15‐oxo‐28‐norolean‐12‐en‐23‐oic acid (5), and 4‐[2‐(acetylamino)ethyl]phenyl O‐6‐O‐[(Z)‐p‐methoxycinnamoyl]‐β‐D‐glucopyranosyl‐(1→2)]‐O‐[β‐D‐glucopyranosyl‐(1→3)]‐4‐O‐acetyl‐α‐L‐rhamnopyranoside (6), respectively.