New xanthone from the seeds of Tectona grandis

Natural Product Laboratory, Department of Chemistry, University of Allahabad, Allahabad-211 002, India E-mail : nidhisri30@rediffmail.com Manuscript received 3 March 2003, revised 4 July 2003, accepted 24 July 2003 A new xanthone has been isolated from the seeds of Tectona grandis and characterized as 1,8-dihydroxy-3,7-dimethnxy-4-O-[3'-methyl-4'-(3"-methyl-2" H, 5" H-2"-oxofuran-5-yl)-2-butenyl) xanthone