Salvianolic acid G,a caffeic acid dimer with a novel tetracyclic skeleton was isolated from the roots of Salvia miltiorrhiza.Its structure was elucidated by chemical and spectral analysis,especially by 2D NMR analysis.
Isovaleroyl oxokadsurane,a novel dibenzocyclooctadiene lignan pos- sessing a spirobenzofuranoid skeleton was isolated from the stems of Kadsura coccinea.Its structure and relative configuration were determined by X-ra...Isovaleroyl oxokadsurane,a novel dibenzocyclooctadiene lignan pos- sessing a spirobenzofuranoid skeleton was isolated from the stems of Kadsura coccinea.Its structure and relative configuration were determined by X-ray diffraction analysis.展开更多
文摘Salvianolic acid G,a caffeic acid dimer with a novel tetracyclic skeleton was isolated from the roots of Salvia miltiorrhiza.Its structure was elucidated by chemical and spectral analysis,especially by 2D NMR analysis.
文摘Isovaleroyl oxokadsurane,a novel dibenzocyclooctadiene lignan pos- sessing a spirobenzofuranoid skeleton was isolated from the stems of Kadsura coccinea.Its structure and relative configuration were determined by X-ray diffraction analysis.