NORABIETANE DITERPENOIDS AND OTHER TERPENOIDS FROM SALVIA-RECOGNITA

Seven diterpenoids, three of them being new, salvirecognine, salvireco gnine, 6 alpha-hydroxy-11,12-dioxo-8,13-abieta-diene, were isolated fr om the roots of Salvia recognita together with three known triterpenoi ds. The structures of the known compounds were established by comparin g their spectral data to those of authentic samples as well as by TLC comparisons. The structures of the new compounds were deduced by 1D an d 2D NMR techniques including APT, DEFT, COSY and HETCOR. (C) 1998 Els evier Science Ltd. All rights reserved.