J Integr Plant Biol. ›› 2007, Vol. 49 ›› Issue (5): -.DOI: 10.1111/j.1744-7909.2007.00370.x

• Stress & Phytochemistry •    

Two New Sesquiterpenoid Glucosides from the Aerial Parts of Saussurea involucrate

Xiao-Ling Wang, Suo-Lang Gesang, Wei Jiao, Xun Liao and Li-Sheng Ding   

Abstract: Two new sesquiterpenoid glucosides, namely 6a-hydroxycostic acid 6-b-d-glucopyranoside (compound 1) and 11bH-11,13-dihydrodehydrocostuslactone 8a-O-(6''-acetyl)-b-d-glucopyranoside (compound 2), along with 11 known sesquiterpenoids (compounds 3?3) were isolated from the aerial parts of Saussurea involucrate (Kar. et Kir.) Sch.-Bip. The structures of the new sesquiterpenoid glucosides were established by one- and two-dimensional nuclear magnetic resonance and mass spectrometry analysis.

Key words: 6a-hydroxycostic acid 6-b-d-glucoside, 11bH-11,13-dihydrodehydrocostuslactone, 8a-O-(6'-acetyl)-a-d-glucoside, Saussurea involucrate, sesquiterpenoid glucoside.

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