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

doi:10.1002/hlca.200890016

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 journal › Article › peer-review

17 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 language	English
Pages (from-to)	79-84
Number of pages	6
Journal	Helvetica Chimica Acta
Volume	91
Issue number	1
DOIs	https://doi.org/10.1002/hlca.200890016
Publication status	Published - 2008

ASJC Scopus subject areas

Catalysis
Biochemistry
Drug Discovery
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

Access to Document

10.1002/hlca.200890016

Cite this

@article{9f2ba043eb64431ea2cd7effcfc5379e,

title = "Unexpected novel pheophytin peroxides from the leaves of Biden pilosa",

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.",

author = "Zong-Huei Li and Lu, \{Chung Kuang\} and Kuo, \{Yueh Hsiung\} and Lo, \{Jir Mehng\} and Lee, \{Ching Kuo\}",

year = "2008",

doi = "10.1002/hlca.200890016",

language = "English",

volume = "91",

pages = "79--84",

journal = "Helvetica Chimica Acta",

issn = "0018-019X",

publisher = "Wiley-Blackwell",

number = "1",

}

TY - JOUR

T1 - Unexpected novel pheophytin peroxides from the leaves of Biden pilosa

AU - Li, Zong-Huei

AU - Lu, Chung Kuang

AU - Kuo, Yueh Hsiung

AU - Lo, Jir Mehng

AU - Lee, Ching Kuo

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/38849189962

UR - https://www.scopus.com/pages/publications/38849189962#tab=citedBy

U2 - 10.1002/hlca.200890016

DO - 10.1002/hlca.200890016

M3 - Article

AN - SCOPUS:38849189962

SN - 0018-019X

VL - 91

SP - 79

EP - 84

JO - Helvetica Chimica Acta

JF - Helvetica Chimica Acta

IS - 1

ER -

Unexpected novel pheophytin peroxides from the leaves of Biden pilosa

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this