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Leaf Spray Mass Spectrometry: A Rapid Ambient Ionization Technique to Directly Assess Metabolites from Plant Tissues
Published on: June 21, 2018
New compounds from leaves of Smallanthus sonchifolius
Xiang Zheng1, Gai Kuo, Dou De-Qiang
1College of Pharmacy, Liaoning University of Traditional Chinese Medicine, 77 Life one Road, Dalian Economic and Technical Development Zone, Dalian 116600, China.
Abstract:
A new octadecatrienoic acid and a new benzyl glycoside, along with a known compound, were isolated from the leaves of Smallanthus sonchifolius. The structures of the two new compounds were elucidated as 13(R)-hydroxy-octadeca-(9E,11E,15Z)-trienoic acid (1) and benzyl alcohol 7-O-alpha-L-arabinopyranosyl(1" --> 2')-beta-D-glucopyranoside (2) on the basis of spectroscopic analysis and chemical evidence. The known compound was identified as 13(R)-hydroxy-octadeca-(9Z,11E,15Z)-trienoic acid (3) by comparison of its spectral data with that reported. Compound 3 was isolated for the first time from the title plant.
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