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Panel A. “Grant numbers:” The incremental chemical shift perturbations imposed by a methyl substituent in the equatorial (cf. 8eq) vs. the axial (cf. 8ax) position of a chair-like cyclohexane.iii Positive values refer to downfield (and negative upfield) changes in the chemical shift of the axial or equatorial protons of cyclohexane itself. Panel B. trans-Fused octalin subunit of structure 1 (9a) vs. its equatorial 18-Me counterpart (9b).
