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 | |
| Publication status | Published - 2008 |
Fingerprint
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 journal › Article
}
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 - http://www.scopus.com/inward/record.url?scp=38849189962&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=38849189962&partnerID=8YFLogxK
U2 - 10.1002/hlca.200890016
DO - 10.1002/hlca.200890016
M3 - Article
AN - SCOPUS:38849189962
VL - 91
SP - 79
EP - 84
JO - Helvetica Chimica Acta
JF - Helvetica Chimica Acta
SN - 0018-019X
IS - 1
ER -