New thiophenes from Echinops grijisii.
A new thiophene-echinoynethiophene A (11), four new natural products, namely 5,5"-dichloro-alpha-terthiophene (1), 5-chloro-alpha-terthiophene (2), 5-acetyl alpha-terthiophene (3) and 5-carboxyl bithiophene (12), together with seven known thiophenes were isolated and purified from ethanol extract of roots of Echinops grijisii Hance. Their structures were identified on the basis of spectral data.
The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
Yue
Y
Liu
Min
M
Ye
Hong-Zhu
HZ
Guo
Yu-Ying
YY
Zhao
De-An
DA
Guo
D000480:Alkynes / Q000737:chemistry* / Q000302:isolation & purification; D031182:Echinops Plant; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*; D013876:Thiophenes / Q000737:chemistry* / Q000302:isolation & purification
D000480:Alkynes; D010936:Plant Extracts; D013876:Thiophenes; C469760:echinoynethiophene A