Antiinflammatory and Antioxidant Flavonoids and Phenols from Cardiospermum halicacabum ( Dào Dì Líng).
Seventeen compounds, quercetin-3-O-α-l-rhamnoside (1), kaempferol-3-O-α-L-rhamnoside (2), apigenin-7-O-β-D-glucuronide (3), apigenin 7-O-β-D-glucuronide methyl ester (4), apigenin 7-O-β-D-glucuronide ethyl ester (5), chrysoeriol (6), apigenin (7), kaempferol (8), luteolin (9), quercetin (10), methyl 3,4-dihydroxybenzoate (11), p-coumaric acid (12), 4-hydroxybenzoic acid (13), hydroquinone (14), protocathehuic acid (15), gallic acid (16), and indole-3-carboxylic acid (17), were isolated from the ethanol extract of Taiwanese Cardiospermum halicabum. All chemical structures were determined by physical and extensive spectroscopic analyses such as (1) H Nuclear Magnetic Resonance spectroscopy (NMR), (13)C NMR, (1)H-(1)H Correlation spectroscopy ((1)H-(1)H COSY), Heteronuclear Multiple Quantum Coherence spectroscopy (HMQC), Heteronuclear Multiple-bond Correlation spectroscopy (HMBC), and Nuclear Overhauser Effect spectroscopy (NOESY), as well as comparison with literature values. Furthermore, the High-Performance Liquid Chromatography- Photodiode Array Detector (HPLC-DAD) fingerprint profile was established for the determination of major constituents in the EtOAc extract and retention times of the isolated compounds. All isolated compounds were also evaluated for antiinflammatory and antioxidant activities.
National Research Institute of Chinese Medicine, Taipei, Taiwan.
Hui-Ling
HL
Cheng
National Research Institute of Chinese Medicine, Taipei, Taiwan.
Li-Jie
LJ
Zhang
National Research Institute of Chinese Medicine, Taipei, Taiwan.
Yu-Han
YH
Liang
National Research Institute of Chinese Medicine, Taipei, Taiwan.
Ya-Wen
YW
Hsu
National Research Institute of Chinese Medicine, Taipei, Taiwan.
I-Jung
IJ
Lee
R & D Department, Starsci Biotech Co. LTD. Taipei, Taiwan.
Chia-Ching
CC
Liaw
Endemic Species Research Institute, Council of Agriculture, Nantou, Taiwan.
Syh-Yuan
SY
Hwang
National Research Institute of Chinese Medicine, Taipei, Taiwan. ; The Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan.
Yao-Haur
YH
Kuo
Anti-oxidative activity; Antiinflammatory activity; Cardiospermum halicabum; Flavanoids; HPLC fingerprint assay