From the aerial parts of Salvia candelabrum two new rearranged abietane diterpenoids, candesalvones A and B, have been isolated besides β-sitosterol, nepeticin [lup-20(29)-ene-3β,11α-diol], candelabrone [11,12,14-trihydroxy-8,11,13-abietatriene-3,7-dione) and large amounts of ursolic and oleanolic acids. The structures of candesalvone A[11,12,14-trihydroxy-19(4→3)-abeo-3,8,11,13-abietatetraen-7-one] and candesalvone B [11,12,14-trihydroxy-7-oxo-3,4-seco-4(18),8,11,13-abietatetraen-3-oic acid] were established by chemical and spectroscopic means. In addition, the root bark of the same species afforded the previously known abietane derivatives 7α-acetoxyroyleanone, 12-O-methylpisiferic acid and sugiol.
- 19(4→3)-abeo-abietane derivative
- 3,4-seco-abietane derivative
- abietane diterpenoids
- candesalvones A and B.
- Salvia candelabrum