抄録
A novel chlorine-containing neo-clerodane diterpene, teupernin D, and two known compounds, teucvidin and teuflin, were isolated from the whole parts of Teucrium pernyi. The structure of teupernin D was characterized as (12S)-15, 16-epoxy-8β-hydroxy-17-chloro-19-nor-10α-neo-cleroda-4, 13, 14-triene-18, 6β : 20, 12-diolide on the basis of spectral evidence. The absolute configuration was established by the circular dichroism (CD) spectrum and confirmed by X-ray crystallographic analysis.