A Novel Dimeric Diterpene from Salvia prionitis

A novel dimeric abietane diterpene, hongencaotone (1), has been isolated from the roots of Salvia prionitis, and its structure was determined by spectral data interpretation and X-ray analysis. Hongencaotone (1) is the first ether-linked heterodimeric diterpene to have been isolated from the genus Salvia.