Fig. 4 in Sesquiterpene coumarins from Ferula sinkiangensis K.M.Shen and their cytotoxic activities

Fig. 4. Comparisons of calculated ECD spectra and experimental ECD spectra of compounds 3–5. (A) The Cal. ECD of stereoisomer (3′R, 4′R, 5′S, 10′S) of 3 were more matched with the Exp. ECD of 3. (B) The Cal. ECD of stereoisomer (3′S, 5′R, 8′R, 9′S, 10′S) of 4 were more matched with the Exp. ECD of 4. (C) The Cal. ECD of stereoisomer (3′R, 5′R, 6′S, 9′R, 10′R) of 5 were more matched with the Exp. ECD of 5.