Pharmaceutical preparations

Details Pharmaceutical preparations Pharmaceutical preparations

Filed on

1990-06-04

Date issued

1991-09-24

Examiner

Gerstl, Robert

Patent Class

Drug, bio-affecting and body treating compositions

SubClass

Designated organic active ingredient containing

SubSubClass

Having -c-, wherein x is chalcogen, bonded directly to...

Other Related Categories

548255, C07D29404, A61K 3141

Type

Patent

Status

active

Patent number

050514350

Description

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.

REFERENCES:
patent: 4380642 (1983-04-01), Rieber

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