Pharmaceutical preparations
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United States of America Patent
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Sep 24, 1991
Issued Date -
N/A
app pub date -
Jun 4, 1990
filing date -
Aug 7, 1986
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Expired
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Abstract
The synthesis of quaternary five membered N-n-alkyl-hetero-cycles, especially of 4-hydroxy-N(1)-n-alkyl-imidazolium, 2,5-substituted N(3)-n-alkyl-thiazolium and substituted N(2) pyrazolium salts are described. The N-surfactants obtained have a very small critical micelle concentration (CMC) of 10.sup.-5 -10.sup.-7 Mol/Liter, and are capable of forming micelles of different sizes and forms depending on the nature of the anions. The N-detergents can be used as pharmaceuticals.
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