A bis-bithiophene from Tridax procumbens L. (Asteraceae).
The ethyl acetate soluble part of hexane extract of Tridax procumbens yielded a new bis-bithiophene named tridbisbithiophene along with four known terpenoids: taraxasteryl acetate, beta-amyrenone, lupeol and oleanolic acid, which have never been reported so far from Tridax procumbens. The structures of all the isolated constituents were elucidated with the aid of 1D-NMR spectroscopy whereas, the structure of new constituent tridbisbithiophene was confirmed via COSY and HMBC interactions.
Ali
Muhammad Shaiq
MS
H.E.J. Research Institute of Chemistry, University of Karachi, Pakistan.
Jahangir
Muhammad
M
D019659:Asteraceae / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D019906:Nuclear Magnetic Resonance, Biomolecular; D009828:Oleanolic Acid / Q000737:chemistry / Q000302:isolation & purification; D010154:Pakistan; D053978:Pentacyclic Triterpenes; D010946:Plants, Medicinal / Q000737:chemistry*; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification; D013876:Thiophenes / Q000737:chemistry / Q000302:isolation & purification*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification; D000094042:Lupanes
D009828:Oleanolic Acid; D053978:Pentacyclic Triterpenes; D013261:Sterols; D013876:Thiophenes; D014315:Triterpenes; C469771:tridbisbithiophene; C092740:taraxasteryl acetate; C010480:lupeol; D000094042:Lupanes