Neolignans and Phenylpropanoids from the Rhizomes of Coptis japonica var. dissecta

抄録

Six new dihydrobenzofuran neolignans were isolated from the fresh rhizomes of Coptis japonica var. dissecta, together with (+)-isolariciresinol, (+)-lariciresinol glucoside, (+)-pinoresinol, (+)-pinoresinol glucoside, (+)-syringaresinol glucoside and ethyl ferulate. Their structures were determined on the basis of spectroscopic data and chemical evidence. Their absolute configurations were determined by means of CD studies.