Tris-substituted biguanide compounds and their uses
OwnerHwang Hsing Cheninventor
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Abstract
Novel tris-substituted biguanide compounds are made by reaction of sodium dicyanamide with a trifunctional primary amine followed by reaction with anilines. The tris-substituted biguanide compounds are potent biocide and useful as a disinfectant. The novel compounds have biocidal activity comparable to those of widely used chlorhexidine with respect to width of antibacterial spectrum and in immediate effectiveness. The novel tris-substituted biguanide compounds can also be used for cleaning wounds, preventing dental plaque, treating yeast infections of the mouth, and to keep urinary catheters from blocking, These novel compounds have superior aqueous solubility and bioavailability and have potent antibacterial activity especially against A. baumanni and K. pneumonia.
Claims14
A biocide solution comprising a compound having three substituted biguanide groups of the following formula:
- wherein Linker represents linkage group with 3 or more points of connections for biguanide groups and;
- R1, R2, R3 represent independently the same or different alkyl, aryl or heterocyclic groups, optionally substituted with halogen, O—R4, N—R5R6, R7;
- R4, R5, R6, R7 represent independently the same or different alkyl or aryl groups, optionally substituted with halogen, O-alkyl;
- Cl− represent counter ions including chloride, bromide, iodide, acetate, or gluconate.
Dependencies are inferred from the claim text.