A new eudesmane sesquiterpene from Pluchea arguta

Abstract

A new eudesmane sesquiterpene,, pluchargen A (3-β-[3′-chloro- 2′-hydroxy-2′-methyl butyroyl]-cuauhtemone), was isolated from the whole plant of Pluchea arguta, and the structure was elucidated on the basis of 1- and 2-D NMR spectroscopic studies.