Two new sesquiterpenes: beishulenolide A 1 and peroxiatractylenolide III 2 wereisolated from Atraclylodes macrocephala Koids (compositae).Their structures were elucidated onthe basis of spectral evidence, especially 2...Two new sesquiterpenes: beishulenolide A 1 and peroxiatractylenolide III 2 wereisolated from Atraclylodes macrocephala Koids (compositae).Their structures were elucidated onthe basis of spectral evidence, especially 2D-NMR methods and chemical conversion.展开更多
A new ellagitannin, named bractin （1）, had been isolated from the dried aerial part of Cleidion bracteosum. Its structure was determined based on various of spectral analysis.
文摘Two new sesquiterpenes: beishulenolide A 1 and peroxiatractylenolide III 2 wereisolated from Atraclylodes macrocephala Koids (compositae).Their structures were elucidated onthe basis of spectral evidence, especially 2D-NMR methods and chemical conversion.
文摘A new ellagitannin, named bractin （1）, had been isolated from the dried aerial part of Cleidion bracteosum. Its structure was determined based on various of spectral analysis.
