title: A new di-O-prenylated isoflavone from Tephrosia tinctoria.
abstract: A new di-O-prenylated isoflavone, 5,7-di-O-prenylbiochanin A (1), together with three known compounds, 7-O-methylglabranin (2), tephrowatsin C (3) and flemichapparin B (4), were isolated from the stems of Tephrosia tinctoria. The structures of these compounds were elucidated by extensive 2D NMR spectral studies.
authors.affiliation: Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati, India.
authors.forename: Shaik Ibrahim
authors.initials: SI
authors.lastname: Khalivulla
authors.forename: Bandi Anil Kumar
authors.initials: BA
authors.lastname: Reddy
authors.forename: Duvvuru
authors.initials: D
authors.lastname: Gunasekar
authors.forename: Alain
authors.initials: A
authors.lastname: Blond
authors.forename: Bernard
authors.initials: B
authors.lastname: Bodo
authors.forename: Madugula Marthanda
authors.initials: MM
authors.lastname: Murthy
authors.forename: Tadikimalli Prabhakar
authors.initials: TP
authors.lastname: Rao
mesh_terms: D007529:Isoflavones / Q000737:chemistry*; D008967:Molecular Biology; D015394:Molecular Structure; D018547:Plant Stems / Q000737:chemistry; D031304:Tephrosia / Q000737:chemistry*
chemical_list: C539145:5,7-di-O-prenylbiochanin A; D007529:Isoflavones