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Chemical Constituents from the Roots of Schnabelia tetradonta
Author(s) -
Dou Hui,
Liao Xun,
Peng ShuLin,
Pan YuanJiang,
Ding LiSheng
Publication year - 2003
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200390230
Subject(s) - chemistry , diterpene , abietane , stereochemistry , triterpenoid , herb , chemical constituents , triterpene , traditional medicine , medicinal herbs , medicine , alternative medicine , chromatography , pathology
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.