Studies of Local AnaestheticsCLIX. HPLC Separation of 1-Methyl-2-piperidinoethylesters of Alkoxyphenylcarbamic Acid

České info

ŠTÚDIUM LOKÁLNYCH ANESTETÍK CLIX. HPLC SEPARÁCIA 1-METYL-2-PIPERIDÍNOETYLESTEROV KYSELÍN ALKOXYFENYLKARBÁMOVÝCH*

V práci sa použili (3- a y-cyclodextríny ako chirálne stacionárne fázy v HPLC a ako mobilně fázy bolí poláme organické rozpúštadlá. Separovali sa enantioméry alkoxysubstituovaných esterov fenylkarbámových kyselin (lokálne anestetiká), pričom sa zistovali rózne vplyvy na separačný proces. Skúmal sa predovšetkým vplyv zloženu a koncentrácie organických rozpúštadiel a vplyv prítomnosti Tónových modifikátorov v mobilnej fáze. Zistili sa podmienky separácie enantiomérov derivátov fenylkarbámovej kyseliny. Diskutuje sa aj o interakciách, ktoré ovplyvňujú separáciu enantiomérov.

Klíčová slova:
separácie enantiomérov - chirálne stacionárne fázy - HPLC - R-cyklodextrín - y-cyklodextrín - alkoxysubstituované estery kyseliny fenylkarbámovej

Authors: M. Renčová; J. Čižmárik; J. Lehotay; K. Hroboňová
Authors‘ workplace: Katedra farmaceutickej chémie Farmaceutickej fakulty Univerzity Komenského, Bratislava Katedra analytickej chémie Chemicko-technologickej fakulty STU, Bratislava
Published in: Čes. slov. Farm., 2002; , 150-153
Category:

Overview

The paper employed R- and y-cyclodextrins as chiral stationary phases in HPLC, the mobile phases being polar organic solvents. Enantiomers of alkoxysubstituted esters of phenylcarbamic acids (local anaesthetics) were separated and various effects on the process of separation were examined. Primarily the effects of the composition and concentration of organic solvents and the effect of the presence of ionic modifiers in the mobile phase were investigated. The conditions of separation of the enantiomers of phenylcarbamic acid derivatives were found. Interactions influencing separation of enantiomers are also discussed.

Key words:
separation of enantiomers - chiral staionary phases - HPLC - R-cyclodextrin - y-cyclodextrin - alkoxysubstituted esters of phenylcarbamic acid

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Article was published in

Czech and Slovak Pharmacy

2002 Issue 3