alexa Improving the membrane permeability of sialic acid derivatives.
Bioinformatics & Systems Biology

Bioinformatics & Systems Biology

Journal of Glycomics & Lipidomics

Author(s): Altamore TM, Duggan PJ, Krippner GY

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Abstract The potential of boronic acids to improve the bioavailability of carbohydrate derived drugs was investigated through the study of the transport of four sialic acid derivatives through a lipophilic supported liquid membrane at departure phase pH's of 7.4, 8.5 and 10.0. It was found that facilitated transport did occur in most cases, but interestingly, and in contrast to that observed with monosaccharides such as d-fructose, the lipophilic ammonium salt, Aliquat 336, promoted fluxes than those of the boronic acid. The triol side chain of the sialic acid derivatives, combined with the amide at C5, appears to represent a previously unrecognised chloride binding domain which promotes extraction of these compounds into membranes containing Aliquat 336, leading to fluxes greater than those produced by boronic acids. This article was published in Bioorg Med Chem and referenced in Journal of Glycomics & Lipidomics

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