144689-68-9

Upstream product

• 172875-58-0 2-Ethyl-5-(1-hydroxy-1-methyl-ethyl)-3-[2'-(2-trityl-2H-tetrazol-5-yl)-biphenyl-4-ylmethyl]-3H-imidazole-4-carboxylic acid ethyl ester 
• 58954-22-6 2-ethyl-1H-imidazole-4,5-dicarboxylic acid 
• 89946-68-9 2-ethyl-1H-imidazole-4,5-dicarboxylic acid diethyl ester 
• 144690-95-9 ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)-1-{4-[2-(trityltetrazol-5-yl)phenyl]phenyl}methylimidazole-5-carboxylate 
• 144690-18-6 ethyl 2-ethyl-4-(1-hydroxy-1-methylethyl)imidazole-5-carboxylate 
• 57610-38-5 2-ethyl-1H-imidazole-4,5-dicarbonitrile 

Relevant academic research and scientific papers

ANGIOTENSIN II ANTAGONIST 1-BIPHENYLMETHYLIMIDAZOLE COMPOUNDS AND THEIR THERAPEUTIC USE

Compounds of the following formula (I) or the formula (I) p : STR1 wherein R 1 is alkyl or alkenyl; R 2 and R 3 are hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl, or aryl fused to cycloalkyl; R 4 is hydrogen, alkyl, alkanoyl, alkenoyl, arylcarbonyl, alkoxycarbonyl, tetrahydropyranyl, tetrahydrothiopyranyl, tetrahydrothienyl, tetrahydrofuryl, a group of formula--SiR a R b R c, in which R a, R b and R c are alkyl or aryl, alkoxymethyl, (alkoxyalkoxy)methyl, haloalkoxymethyl, aralkyl, aryl or alkanoyloxymethoxycarbonyl; R 5 is carboxy or--CONR 8 R 9, wherein R 8 and R 9 hydrogens or alkyl, or R 8 and R 9 together form alkylene; R 6 is hydrogen, alkyl, alkoxy or halogen; R. sup.7 is carboxy or tetrazol-5-yl; R p. sup.1 is hydrogen, alkyl, cycloalkyl or alkanoyl; R p 2 is a single bond, alkylene or alkylidene; R p 3 and R p 4 are each hydrogen or alkyl; R. sub.p 6 is carboxy or tetrazol-5-yl; and X p is oxygen or sulfur; and pharmaceutically acceptable salts and esters thereof. The compounds are AII receptor antagonists and thus have hypotensive activity and can be used for the treatment and prophylaxis of hypertension. The compounds may be prepared by reacting a biphenylmethyl compound with an imidazole compound.

Nonpeptide angiotensin II receptor antagonists: Synthesis, biological activities, and structure - Activity relationships of imidazole-5-carboxylic acids bearing alkyl, alkenyl, and hydroxyalkyl substituents at the 4-position and their related compounds

A series of imidazole-5-carboxylic acids bearing alkyl, alkenyl, and hydroxyalkyl substituents at the 4-position and their related compounds were prepared and evaluated for their antagonistic activities to the angiotensin II (AII) receptor. Among them, the 4-(1-hydroxyalkyl)-imidazole derivatives had strong binding affinity to the AII receptor and potently inhibited the AII-induced pressor response by intravenous administration. Various esters of these acids showed potent and long-lasting antagonistic activity by oral administration. The most promising compounds were (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl (CS-866) and (pivaloyloxy)-methyl esters of 4-(1-hydroxy-1-methylethyl)-2-propyl-1-[(2′-1H-tetrazol-5-ylbiphenyl-4-yl) -methyl]imidazole-5-carboxylic acid (26c). A study involving stereochemical comparison of 26c with the acetylated C-terminal pentapeptide of AII was also undertaken.