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Novel phenoxyisobutyric acid compounds and methods for synthesis

a technology of phenoxyisobutyric acid and phenoxyisobutyric acid, which is applied in the direction of peptide/protein ingredients, application, metabolism disorders, etc., and can solve the problems of severe structural and functional changes in protein/protein and protein/cell interaction in the vascular wall, severe consequences on affected organs, and inability to fully understand the mechanisms of hyperglycemia-induced tissue damage in diabetes

Inactive Publication Date: 2012-03-22
CELL VIABLE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structural and functional integrity of the affected molecules, which often have major roles in cellular functions, become disturbed by these modifications, with severe consequences on affected organs such as kidney, eye, nerve, and micro-vascular functions (Silbiger et al., 1993; Brownlee et al., 1985).
For example, formation of AGE on protein in the subendothelial basement membrane causes extensive cross-link formation which leads to severe structural and functional changes in protein / protein and protein / cell interaction in the vascular wall (Haitoglou et al., 1992; Airaksinen et al., 1993).
So far the mechanisms of hyperglycemia-induced tissue damage in diabetes are not well understood.

Method used

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  • Novel phenoxyisobutyric acid compounds and methods for synthesis
  • Novel phenoxyisobutyric acid compounds and methods for synthesis
  • Novel phenoxyisobutyric acid compounds and methods for synthesis

Examples

Experimental program
Comparison scheme
Effect test

example 1 (

Compound 1)

[0045]3,3′-dichloro-1,1′-diphenyl-4,4′-diureidophenoxyisobutyric Acid

[0046]A mixture of 1.95 g (0.01 mole) of 4-aminophenoxyisobutyric acid and 3,3′-dichloro-1,1′-diphenyl-4,4′-diisocyante in 30 ml of cooled tetrahydrofuran (THF) and 0.4 g of NaOH are combined and stirred at room temperature for 24 hours. The THF is evaporated by blowing air. Excess water is added and to the resulting brown solution, about 1.0 g of dithionite is added and the precipitate is separated by filtration (slow) and washed twice with hot water. The filtrate is acidified with concentrated acetic acid and filtered The white powdery material is washed with cold water and dried with dithionite, filtered and acidified with acetic acid The white precipitate is filtered and dried giving 1.6 g (dry) yield 43%. The structure is set forth as structure 1.C34H32Cl2N4O8; mw 695

example 2 (

Compound 2)

[0047]Quinoline-2-(methyleneaminophenoxyisobutyric) Acid

[0048]A mixture of 1.95 g (0.01 mole) of 4-aminoiphenoxyisobutyric acid, 2.28 g (0.01 mole) of 2-chloromethylquinoline hydrochloride; 3 g of potassium carbonate,40 ml of water and 29 ml of isopropanol is refluxed and stirred for 24 hours and a dark brown solution with about 1 g of product is obtained. The product is worked up by adding sodium carbonate. Dithionite is added and the mixture is acidified with acetic acid and a brown powder is obtained. The structure is set forth as structure 2..C20H20N2O3; mw 336

example 3 (

Compound 3)

[0049]2,3,4,5,6-(pentamethylbenzyl-4-aminophenoxyisobutyric) Acid

[0050]A mixture of 1.25g (0.005 mole) of 3,6-bis(chloromethyl amine); 1.9 g. (0.01 mole) 4-aminophenoxyisobutyric acid, 2.0 g (0.01 mole) potassium carbonate and 25 ml of a 50:50 mxture of water and isopropanol is stirred for 24 hours. The mixture is treated as in Example 1 giving a solid with a melting point of 178-184° C.The structure is shown as structure 3 C22H29N1O3;mw 455

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Abstract

The present invention provides a process for the synthesis of substituted phenoxymethylpropionic acid and related compounds. The compounds are useful for inhibiting the formation of AGEs (Advanced Glycation End Products).

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates generally to the synthesis and production of novel substituted arylureidophenoxymethylpropionic acids that are useful in pharmaceutical applications. One use of the disclosed compounds is as anti AGE (Advanced Glycation Products) compound for the treatment of diabetes.[0002]It is known in the art that elevated concentration of reducing sugars in the blood and in the intracellular environment results in the nonenzymatic formation of glycation and dehydration condensation complexes known as advanced glycation end-products or aminaglycation end products (AGEs). Nonenzymatic glycation is a complex series of reactions between reducing sugars and amino groups of proteins, lipids, and DNA. These complex products form on free amino groups on proteins, on lipids and on DNA (Bucala and Cerami, 1992; Bucala et al., 1993; Bucala et al., 1984). This phenomenon is called “browning” or a “Maillard” reaction and was discovered early in ...

Claims

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Application Information

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IPC IPC(8): A61K31/196C07D215/14C07D215/52C07D219/04C07D307/87A61K31/47A61K31/473A61K31/343A61K8/49A61K8/44A61Q19/08A61P29/00A61P25/28A61P3/00A61P9/10A61P25/00A61P3/10C07C229/42
CPCA61K8/411C07D215/14A61K8/4926A61Q19/08C07C215/76C07C233/75C07C235/74C07C275/34C07D215/12C07D215/50C07D215/52C07D219/04C07D307/87C07C229/40C07C275/42C07C235/72A61K8/42A61P3/00A61P3/10A61P9/10A61P25/00A61P25/28A61P29/00
Inventor LALEZARI, IRAJFABRICANT, JILL
Owner CELL VIABLE CORP
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