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Spectral regions of (left) 1H NMR (600 MHz, CDCl3, 25 °C) and (right) 19F NMR (564 MHz, CDCl3, 25 °C) spectra involving amide and fluorine nuclei in 1:2 enantiomerically enriched mixtures of substrates 3–8: (a) CSA/3; (b) CSA/4; (c) CSA/5; (d) CSA/6; (e) CSA/7; (f) CSA/8.
