Cationic beta-cyclodextrin derivative for chiral separations.

J L Haynes; S A Shamsi; F O'Keefe; R Darcey; I M Warner

doi:10.1016/s0021-9673(97)01212-0

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PubMed · 9604336

Cationic beta-cyclodextrin derivative for chiral separations.

J L Haynes·S A Shamsi·F O'Keefe·R Darcey·I M Warner

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Abstract

A novel hepta-substituted beta-cyclodextrin bearing the methoxyethylamine group linked to the upper cyclodextrin rim was successfully used as a chiral selector for enantiomeric separation of non-steroidal anti-inflammatory drugs (NSAIDs) and phenoxypropionic acid herbicides (PPAHs). Separation parameters such as pH and concentration were found to have major influences on enantiomeric resolution of the NSAIDs and PPAHs. Results indicate that heptakis(6-methoxyethylamine-6-deoxy)-beta-cyclodextrin [beta-CD-OMe (VII)] performs exceptionally well for the enantiomeric resolution of NSAIDs: indoprofen and fenoprofen (Rs = 11 and 14, respectively). In addition, baseline enantiomeric separation of a mixture of six pairs of PPAHs was achieved in under 30 min. Compared to other cationic beta-cyclodextrins reported in the literature, the beta-CD-OMe (VII) showed improved selectivity for both classes of the aforementioned anionic racemates.

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Anti-Inflammatory Agents, Non-Steroidal Cyclodextrins Electrophoresis, Capillary Herbicides Hydrogen-Ion Concentration Osmolar Concentration Propionates Spectrophotometry, Ultraviolet Stereoisomerism Comparative Study Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.Research Support, U.S. Gov't, P.H.S.

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J L Haynes, S A Shamsi, F O'Keefe, R Darcey, I M Warner. 1998-04-17. Cationic beta-cyclodextrin derivative for chiral separations.. https://doi.org/10.1016/s0021-9673(97)01212-0

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