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1. (Article ID: 11460)
 
Haribal M, Renwick JAA
Isovitexin 6 ''-O-beta-D-glucopyranoside: A feeding deterrent to Pieris napi oleracea from Alliaria petiolata
Phytochemistry 47(7) (1998) 1237-1240
 

Pieris napi oleracea, an indigenous butterfly to North America lays eggs on Alliaria petiolata, an invasive weed introduced from Europe, but the larvae generally do not survive. A new apigenin glycoside, isovitexin 6"-O-glucoside has been isolated from the leaves A. petiolata and identified as a feeding deterrent for P. napi fourth instar larvae. The structure was elucidated by UV, MS and NMR spectroscopy.

flavone glycoside, Cruciferae, Alliaria petiolata, Pieris napi oleracea, Pieridae, feeding deterrent

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2. (Article ID: 11846)
 
Haribal M, Renwic JAA, Attygalle A
A new sinapoyl derivative of isovitexin 6'-O-β-D-glucopyranoside from Alliaria petiolata
Journal of Natural Products 62(1) (1999) 179-180
 

The new compound 6"-O-sinapoylisovitexin 6'-O-β-D-glucopyranoside (1) was isolated from the foliage of Alliaria petiolata, and identified by spectral studies.

Alliaria petiolata, sinapoyl glucoside, spectral study

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