title: Two new bicoumarins from Trifolium repens L.
abstract: Two new bicoumarins, named repensin A (1) and B (2), have been isolated from Trifolium repens. On the basis of spectral data, the structures of 1 and 2 have been established as 7-methoxy-7',8'-dihydroxy-8,6'-bicoumarinyl and 7,5'-dihydroxy-3,6'-bicoumarinyl, respectively.
authors: Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China.
authors: Qing-Feng
authors: QF
authors: Zhan
authors: Zeng-Hua
authors: ZH
authors: Xia
authors: Jun-Lin
authors: JL
authors: Wang
authors: Ai-Na
authors: AN
authors: Lao
mesh_terms: D003374:Coumarins / Q000737:chemistry*; D007887:Fabaceae; D006801:Humans; D008517:Phytotherapy; D010936:Plant Extracts / Q000737:chemistry*
chemical_list: D003374:Coumarins; D010936:Plant Extracts