143945-72-6Relevant articles and documents
METHOD FOR THE PRODUCTION OF LOSARTAN
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Page/Page column 20; 33-34, (2008/06/13)
The invention relates to a novel method for the production of losartan, an imidazol derivative with the chemical name 2-n-butyl-4-chloro-5-hydroxymethyl-1-{[2'-(1H-tetrazol-5-yl)biphenyl-4-]methyl}imidazol and the pharmacologically active salts thereof. The invention also relates to novel intermediate products which are suitable for the production of losartan, and to novel methods for the production of intermediate compounds which are suitable for the production of losartan. One aspect of the invention is a method for the production of a compound of general formula (I), which can arise as an intermediate step in the inventive representation of losartan.
5-aryleheteroarylalkyl-1,3,5-trisubstituted-1,2,4-triazole compounds for treatment of circulatory disorders
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, (2008/06/13)
A class of 5-arylheteroarylalkyl-1,3,5-trisubstituted-1,2,4-triazole compounds is described for use in treatment of circulatory disorders such as hypertension. Compounds of particular interest are angiotensin II antagonists of the formula wherein A is selected from wherein m is one; wherein R1 is selected from ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 4-methylbutyl, n-pentyl, neopentyl, benzyl, cyclohexyl, cyclohexylmethyl, 2-butenyl, 3-butenyl, 2-butynyl, 3-butynyl and 2-hydroxybutyl; wherein R2 is selected from ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, 4-methylbutyl, tert-butyl, n-pentyl, neo-pentyl, 1-oxoethyl, 1-oxopropyl, 1-oxobutyl, 1-oxopentyl, 1,1-dimethoxypropyl, 1,1-dimethoxypentyl, halo, difluoromethyl, 1-oxo-2-phenylethyl, 1-oxo-2-cyclohexylethyl, 1,1-difluoro-2-phenylethyl, 1,1-difluoro-2-cyclohexylethyl, 2-cyclohexylethyl, 1,1-difluoro-3-cyclohexylpropyl, 1,1-dimethoxybutyl, 1,1-difluoroethyl, 1,1-difluoropropyl, 1,1-difluorobutyl, 1,1-difluoropentyl, benzyl, 2-phenylethyl, 1,1-difluoro-3-phenylpropyl, cyclohexylmethyl, cyclohexanoyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-butynyl, 2-butynyl, 3-butynyl, propylthio and butylthio; wherein each of R3, R4, R6 through R11 is hydrido and R5 is selected from COOH, SH, PO3H2, SO3H, CONHNH2, CONHNHSO2CF3, OH, wherein each of R42 and R43 is independently selected from chloro, cyano, nitro, trifluoromethyl, methoxycarbonyl and trifluoromethylsulfonyl.
N-ARYLHETEROARYLALKYL IMIDAZOL-2-ONE COMPOUNDS FOR TREATMENT OF CIRCULATORY DISORDERS
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, (2008/06/13)
A class of N-arylheteroarylalkyl imidazol-2-one compounds is described for use in treatment of circulatory disorders such as hypertension and congestive heart failure. Compounds of particular interest are angiotensin II antagonists of the formula STR1 wherein A is selected from STR2 wherein m is one; wherein R 1 is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 4-methylbutyl, 2-ethylbutyl, n-pentyl, neopentyl, phenyl, methylphenyl, difluorophenyl, benzyl, phenethyl, cyclohexyl, cyclohexylmethyl, cyclohexylethyl, cyclohexanoyl, 1-oxo-2-cyclohexylethyl, benzoyl, 1-oxo-2-phenethyl, 1-oxopropyl, 1-oxobutyl, 1-oxopentyl and 2-hydroxybutyl; wherein R 0 is hydrido; wherein R 2 is selected from methyl, ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl, phenyl, benzyl, phenethyl, cyclohexyl, cyclohexylmethyl, propylthio, butylthio, and hydroxyalkyl; wherein each of R 3, R 4, R 6, R 7, R. sup.8, R 9, R 10 and R. sup.11 is hydrido and R 5 must be selected from COOH, SH, P0 3 H. sub.2, SO 3 H, CONHNH 2, CONHNHSO 2 CF 3, OH, STR3 wherein each of R 42 and R 43 is independently selected from chloro, cyano, nitro, trifluoromethyl, methoxycarbonyl and trifluoromethylsulfonyl; or a tautomer thereof or a pharmaceutically-aceptable salt thereof.
A novel and expeditious route to A-81988: An angiotensin II receptor antagonist
Kerdesky,Sowin
, p. 1007 - 1013 (2007/10/03)
A novel and efficient synthesis of A-81988, an angiotensin II receptor antagonist, is described. The key step utilizes a palladium-catalyzed biaryl coupling between a phenylboronic acid derivative and N-trityl-5-(2-bromophenyl)tetrazole.
5-apylheteroarylalkyl-1,3,5-trisubstituted-1,2,4-triazole compounds for treatment of circulatory disorders
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, (2008/06/13)
A class of 5-arylheteroarylalkyl-1,3,5-trisubstituted-1,2,4-triazole compounds is described for use in treatment of circulatory disorders such as hypertension. Compounds of particular interest are antiotensin II antagonists of the formula STR1 wherein A is selected from STR2 wherein m is one; wherein R1 is selected from ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, tert-butyl, 4-methylbutyl, n-pentyl, neopentyl, benzyl, cyclohexyl, cyclohexylmethyl, 2-butenyl, 3-butenyl, 2-butynyl, 3-butynyl and 2-hydroxybutyl; wherein R2 is selected from ethyl, n-propyl, isopropyl, n-butyl, sec-butyl, isobutyl, 4-methylbutyl, tert-butyl, n-pentyl, neo-pentyl, 1-oxoethyl, 1-oxopropyl, 1-oxobutyl, 1-oxopentyl, 1,1-dimethoxypropyl, 1,1-dimethoxypentyl, halo, difluoromethyl, 1-oxo-2-phenylethyl, 1-oxo-2-cyclohexylethyl, 1,1-difluor-2-phenylethyl, 1,1-difluoro-2-cyclohexylethyl, 2-cyclohexylethyl, 1,1-difluoro-3-cyclohexylpropyl, 1,1-dimethoxybutyl, 1,1-difluoroethyl, 1,1-difluoropropyl, 1,1-difluorobutyl, 1,1-difluoropentyl, benzyl, 2-phenylethyl, 1,1-difluoro-3-phenylpropyl, cyclohexylmethyl, cyclohexanoyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-butynyl, 2-butynyl, 3-butynyl, propylthio and butylthio; wherein each of R3, R4, R6 through R11 is hydrido and R5 is selected from COOH, SH, PO3 H2, SO3 H, CONHNH2, CONHNHSO2 CF3, OH, STR3 wherein each of R42 and R43 is independently selected from chloro, cyano, nitro, trifluoromethyl, methoxycarbonyl and trifluoromethylsulfonyl.