NEW ABIETANE DITERPENOIDS FROM SALVIA-MONTBRETII

Five known compounds, ferruginol, ferruginyl 12-methyl ether, taxodione, hypargenin F, and demethylcryptojaponol, and three new abietane-type diterpenoids, montbretol (6,12-dihydroxyabieta-5,8,11,13-tetraen-7-one) [1], montbretyl 12-methyl ether (6-hydroxy-12-methoxyabieta-5,8,11,13-tetraen-7-one) [2], and 14-hydroxy-ferruginol [3], were isolated from the roots of Salvia montbretii. Structures were established by ir, uv, ms, and nmr spectral data.