114772-25-7Relevant articles and documents
ANGIOTENSIN II ANTAGONIST 1-BIPHENYLMETHYLIMIDAZOLE COMPOUNDS AND THEIR THERAPEUTIC USE
-
, (2008/06/13)
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.
ANGIOTENSIN II RECEPTOR BLOCKING IMIDAZOLES
-
, (2008/06/13)
Substituted imidazoles such as STR1 are useful as angiotensin II blockers. These compounds have activity in treating hypertension and congestive heart failure.
Stable Tellurium Ylides: Synthesis and Reactivity of Diorganyltelluronium 4,5-Dicyanoimidazol-2-ylides
Tappeiner, Guenther,Bildstein, Benno,Sladky, Fritz
, p. 699 - 705 (2007/10/02)
Diorganyl tellurides R2Te (R = Me, Me3SiCH2, Ph) react with 2-diazo-4,5-dicyano-2H-imidazole (1) at -30 deg C to form the title compounds 2-4.The ylides 3 and 4 are thermally stable up to their melting points of 159 and 243 deg C, resp., whereas 2 undergoes a modified Steven rearrangement at 190 deg C with formation of a 2-(methyltelluro)imidazole (10).The reactivity of 2-4 is determined by an extreme charge separation between the onium centre and the ylide entity.No Wittig reactivity is observed, alkylation occurs at the imidazole nitrogen and carbanions lead to tetraorganyl tellurium compounds with limited stability.