ABIETANE DITERPENOIDS FROM SALVIA-CHINOPEPLICA

A new aromatic diterpene has been isolated from the leaves of Salvia c hinopeplica and its structure established on the basis of spectral dat a as 19-hydroxy-royleanone. The known diterpenes carnosol, 16-hydroxy- carnosol, 16-hydroxy-20-deoxo-carnosol, 16-hydroxy-carnosic acid, 16-h ydroxy ferruginol, 7 alpha-methoxy-rosmanol and ydroxy-20-nor-abietan- 5(10),8,11,13-tetraen-1-one, as well as ursolic acid and the flavonoid s velutin, salvigenin and 3,5-dihydroxy-7,4'-dimethoxy-flavone were al so isolated from the same source. (C) 1998 Elsevier Science Ltd. All r ights reserved.