From the acetone extract of the dry roots of Salvia glutinosa, 15 diterpeno
ids were isolated and characterised. Of these, 12-deoxydanshenxinkun B and
dihydroisotanshinone II are novel compounds and isotanshinone II is a new n
atural product. The acetone extracts of S. austriaca, S. tomentosa and,S. v
erticillata all yielded 7 alpha-acetoxyroyleanone and 7 alpha-hydroxyroylea
none. In addition, royleanone and 6,7-dehydroxyroyleanone were isolated fro
m S, tomentosa. (C) 1999 Elsevier Science Ltd. All rights reserved.