The shikimate pathway. Part II. Conformational analysis of (–)-quinic acid and its derivatives by proton magnetic resonance spectroscopy
Abstract
The 1H n.m.r. spectra of a number of derivatives of (–)-quinic acid and quinide are interpreted in terms of the preferred conformations of these molecules. Out of twenty-nine derivatives, thirteen exhibit apparent magnetic equivalence of the C-2 or C-6 protons.