Fig. 2. The 1 H– 1 H in Eudesmane type sesquiterpenes from the rhizomes of Atractylodes macrocephala and their bioactivities

Fig. 2. The 1 H– 1 H COSY (thick lines) and key HMBC correlations (pink arrows, from 1 H to 13C) of compounds 1–15. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)