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.
Liu
Yue
Y
The State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
Ye
Min
M
Guo
Hong-Zhu
HZ
Zhao
Yu-Ying
YY
Guo
De-An
DA
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