Jun Biao CHANG1*,Jing Xi XIE2 1Henan Institute of Chemistry,Henan Academy of Sciences,Zhengzhou 450002 2Institute of Materia Medica,Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100050
Abstract:
Two new lignans with dibenzocycloheptadiene skelectons have been synthesized by intramolecular nonphenolic oxidative coupling and rearrangement. The structures of these products have been identified by MS, UV, IR and NMR spectra.