Title: A rearranged abietane diterpenoid from the root of Salvia aethiopis
Abstract: From the root of Salvia aethiopis a new diterpenoid, salvipisone, has been isolated. Its structure, 12-hydroxy-4,5-seco-5,10-friedo-4(18),5(10),6,8,12-abietapentaen-11,14-dione, was established by spectroscopic means and by partial synthesis from aethiopinone. The previously known diterpenoids aethiopinone and royleanone were also found in the same source.