152623-07-9

Upstream product

• 110-78-1 Propyl isocyanate 
• 152623-33-1 5-Methylsulfanyl-2-propyl-3-(2'-sulfamoyl-biphenyl-4-ylmethyl)-3H-imidazole-4-carboxylic acid ethyl ester 
• 92748-09-9 2-bromobenzene-1-sulfonamide 
• 90566-07-7 ethyl cyano<(1-oxobutyl)amino>acetate 
• 56503-39-0 ethyl (2E)-cyano(hydroxyimino)ethanoate 
• 152623-31-9 Ethyl 2-n-propyl-4-methylthioimidazole-5-carboxylate 
• 152623-30-8 ethyl 3-amino 2-[(1-oxobutyl) amino] 3-(methylthio) 2-propenoate 

Relevant academic research and scientific papers

Imidazole derivatives with a biphenylsulfonylurea or biphenylsulfonylurethane side chain and their use as angitensin II receptors

Imidazole derivatives with a biphenylsulfonylurea or biphenylsulfonylurethane side chain, process for their preparation and their useCompounds of the formula (I) STR1 in which R 1 is, for example, ethyl,R 2 is, for example, methyl,n is, for example, zero,

Sulfonylureas and sulfonylcarbamates as new non-tetrazole angiotensin II receptor antagonists. Discovery of a highly potent orally active (imidazolylbiphenylyl)sulfonylurea (HR 720)

The synthesis and pharmacological activity of new potent nonpeptide non- tetrazole angiotensin II (AII) receptor antagonists are described. These compounds are 4-thioimidazole derivatives linked on N1 to a biphenylsulfonyl fragment by a methylene spacer. Different acidic sulfonamides such as sulfonylureas 12, sulfonylcarbamates 15, sulfonylamides 16, and sulfonylsulfonamides 17 have been investigated as replacements to the known potent tetrazole moiety at the 2'-biphenyl position. Their activity were evaluated by AII receptor binding assay as well as by in vivo (iv and po) assays such as inhibition of the AII-induced presser response in pithed rats. Most of the synthesized sulfonyl derivatives showed nanomolar affinity for the AT1 receptor subtype. The N-propylsulfonylurea 12d and the ethyl sulfonylcarbamate 15b as representative members of this series exhibited high oral activity in the pithed rat model with ID50 values of 0.38 and 0.4 mg/kg, respectively. Structure-activity relationships on the imidazole ring linked to the methylbiphenyl N-propylsulfonylurea fragment demonstrated similar features to those found in the corresponding tetrazole series. For both class of compounds, the linear butyl chain in position 2 and a carboxylic acid in position 5 were important for high in vitro and in vivo activity. In most cases, replacement of the carboxylic acid was detrimental to in rive activity while maintaining the in vitro binding affinity. Introduction of a methylthio group in position 4 was found to enhance oral activity compared to compounds with chloro or other alkylthio, (polyfluoroalkyl)thio, and arylthio groups. 2-Butyl-4-(methylthio)-1-[[(2'- [[[propylamino)carbonyl]amino]sulfonyl](1,1'-biphenyl)-4-yl]methyl]-1H- imidazole-5-carboxylic acid (12d) as the most promising example of the series was synthesized as its dipotassium salt (50, HR 720). This compound 50 inhibited the specific binding of [125I]-AII to rat liver membranes with an IC50 value of 0.48 nM. In vivo, 50 dose-dependently inhibited the AII- induced presser response in normotensive pithed rats (ID50 = 0.11 mg/kg iv and 0.7 mg/kg po). In addition, this compound produced a marked and long- lasting decrease in blood pressure in high renin animal models and proved to be superior to the corresponding tetrazole 45 as well as to DuP 758 or its active metabolite EXP 3174. Compound 50 has been selected for in-depth investigations and is currently undergoing phase II clinical trials.

Angiotensin II receptor antagonists for the treatment and prophylaxis of coronary heart disease

Antagonists for angiotensin II receptors of the AT 1 subtype can be employed for the prophylaxis and combating of coronary heart disease.Furthermore these compounds, such as, for example, azoles of the formula (I) STR1 can also be used for the therapy of cognitive and erectile dysfunction.

Angiotensin II receptor antagonists for the treatment of disturbances in cardiac rhythm

Angiotensin II receptor antagonists for the treatment of disturbances in cardiac rhythm.Antagonists for angiotensin II receptors of the AT, subtype can be employed for combating cardiac arrhythmias, using azole derivatives.