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Abstract
A comparative conformational and dynamical study of a series of structurally related molecules with UV-filtering properties, ,-dimethyl--[2-(4-benzoyl-2-hydroxyphenoxy)ethyl]--dodecyl ammonium bromide 2, ,-dimethyl--[6-(4-benzoylphenoxy)hexyl]--dodecyl ammonium bromide 3 and ,-dimethyl--[3-(salicyloylamino)propyl]--dodecyl ammonium bromide 5, has been performed in CDCl and [H] DMSO solutions. The main conformers of 2 and 3 (extensively folded conformations) and 5 (‘linear’ conformations) were determined by means of selective spin-lattice proton relaxation rates, carbon spin-lattice relaxation rates and 1D nuclear Overhauser effects. On the basis of these results a possible correlation between conformation and antibacterial activity is discussed.
Journal
Journal of the Chemical Society, Perkin Transactions 2 – Royal Society of Chemistry
Published: Jan 1, 1996