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Note | Regular issue | Vol 68, No. 1, 2006, pp.159-165
Published online, 15th November, 2005
DOI: 10.3987/COM-05-10565
New Abietane Diterpene Alkaloids Possessing an Oxazole Ring from Salvia trijuga

Fu-Wen Lin, Amooru G. Damu, and Tian-Shung Wu*

*Department of Chemistry, National Cheng Kung University, 1, Ta-Shiueh Rd., Tainan, 70101, Taiwan, Taiwan, R.O.C.

Abstract

Two new diterpene alkaloids, isosalviamine-A (1) and B (2) and nine known tanshinones (3-11) were isolated from the MeOH extract of roots of S. trijuga. The structures of these new compounds were elucidated from 1H and 13C NMR spectra with the aid of COSY, NOESY, HMQC and HMBC experiments.