Fig. 2 in Two seco-norabietane diterpenoids with unprecedented skeletons from the roots of Salvia abrotanoides (Kar.) Sytsma

Fig. 2. (A) Key HMBC (blue arrows), 1H–1H COSY (red bonds) correlations of compounds 1 and 2, and (B) NOESY correlations of compound 1. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)