Figure 3

Regression analysis of experimental versus calculated 13C NMR chemical shifts of (A) (3R, 7′R, 8′S)-1 and (B) (3R, 7′S, 8′R)-1, respectively. Linear fitting was shown as a dashed line.
Regression analysis of experimental versus calculated 13C NMR chemical shifts of (A) (3R, 7′R, 8′S)-1 and (B) (3R, 7′S, 8′R)-1, respectively. Linear fitting was shown as a dashed line.