Unexpected novel pheophytin peroxides from the leaves of Biden pilosa

Zong-Huei Li, Chung Kuang Lu, Yueh Hsiung Kuo, Jir Mehng Lo, Ching Kuo Lee

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Two new pheophytins, bidenphytins A (1) and B (2), with peroxide functionalities on ring E, were isolated from Biden pilosa LINN. var. radiata SCH. BIP., a popular Taiwanese folk medicine. Also isolated were the following six known compounds: pheophytin a (3), (132R)-132- hydroxypheophytin a (4), (132S)-132-hydroxypheophytin a (5), (132R)-132-hydroxypheophytin b (6), (13 2S)-132-hydroxypheophytin b (7), and aristophyll-C (8). Their structures were elucidated by spectroscopic methods (UV, IR, 1D-and 2D-NMR) and by mass spectrometry (HR-FAB-MS). Possible biosynthetic pathways for 1 and 2 are proposed.

Original languageEnglish
Pages (from-to)79-84
Number of pages6
JournalHelvetica Chimica Acta
Volume91
Issue number1
DOIs
Publication statusPublished - 2008

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Bidens
Pheophytins
FORTRAN
Biosynthetic Pathways
Peroxides
peroxides
Traditional Medicine
medicine
leaves
Medicine
Mass spectrometry
Mass Spectrometry
mass spectroscopy
Nuclear magnetic resonance
nuclear magnetic resonance
rings
pheophytin a

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Unexpected novel pheophytin peroxides from the leaves of Biden pilosa. / Li, Zong-Huei; Lu, Chung Kuang; Kuo, Yueh Hsiung; Lo, Jir Mehng; Lee, Ching Kuo.

In: Helvetica Chimica Acta, Vol. 91, No. 1, 2008, p. 79-84.

Research output: Contribution to journalArticle

Li, Zong-Huei ; Lu, Chung Kuang ; Kuo, Yueh Hsiung ; Lo, Jir Mehng ; Lee, Ching Kuo. / Unexpected novel pheophytin peroxides from the leaves of Biden pilosa. In: Helvetica Chimica Acta. 2008 ; Vol. 91, No. 1. pp. 79-84.
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