[Constituents of Atractylis koreana].

An investigation of the rhizomes of ATRACTYLIS KOREANA afforded, in addition to known selinane sesquiterpenoids, an ester of tetradeca-6, 12-diene-8, 10-diyne-1,3-diol and two isomers of 6-methyl-2-geranyl- P-benzoquinone, which are new compounds for the genus Atractylis. Their structures were established by spectroscopic and chemical methods.