Thiazole or oxazole derivatives which are useful in the treatment of cardiovascular and related diseases

   
   

A compound of formula (I) and pharmaceutically acceptable salts, solvates and hydrolysable esters thereof ##STR1## Wherein R.sup.1 and R.sup.2 are independently H or C.sub.1-3 alkyl or R.sup.1 and R.sup.2 which are bonded to the same carbon atom may together with the carbon atom to which they are bonded form a 3-5 membered cycloalkyl ring; X.sub.1 represents O or S; Each R.sup.3, R.sup.4, R.sup.8 and R.sup.9 independently represents H, halogen, --CH.sub.3 and --OCH.sub.3 ; R.sup.5 represents H or C.sub.1-6 alkyl or R.sup.4 and R.sup.5 together form a 3-6 membered cycloalkyl ring. X.sub.2 represents NH, NCH.sub.3 or O; One of Y and Z is N, and the other is O or S; R.sup.6 represents phenyl or pyridyl (wherein the N is in position 2 or 3) and is optionally substituted by one or more halogen, CF.sub.3, C.sub.1-6 straight or branched alkyl (optionally substituted by halogen), with the provision that when R.sup.6 is pyridyl, the N is unsubstituted. R.sup.7 represents C.sub.1-6 alkyl, (optionally substituted by one or more halogens), --C.sub.0-8 alkyl-5 membered heteroaryl, C.sub.0-6 alkyl-(O).sub.n -phenyl, wherein n is 0 or 1, with the proviso that when R.sup.1 and R.sup.2 are methyl, R.sup.8 and R.sup.9 are H, R.sup.5 is H, then R.sup.7 cannot be CH.sub.3 or CF.sub.3.

Um composto da fórmula (I) e pharmaceutically sais aceitáveis, solvates e ## hydrolysable do ## STR1 dos esters disso wherein R.sup.1 e R.sup.2 são independentemente o alkyl H ou C.sub.1-3 ou os R.sup.1 e os R.sup.2 que são ligados ao mesmo átomo de carbono pode junto com o átomo de carbono a que são formulário ligado um 3-5 membered o anel do cycloalkyl; X.sub.1 representa O ou S; Cada R.sup.3, R.sup.4, R.sup.8 e R.sup.9 representam independentemente H, halogênio, -- CH.sub.3 e -- OCH.sub.3; R.sup.5 representa H ou o alkyl C.sub.1-6 ou R.sup.4 e R.sup.5 dão forma junto a um 3-6 membered o anel do cycloalkyl. X.sub.2 representa o NH, o NCH.sub.3 ou o O; Um de Y e de Z é N, e o outro é O ou S; R.sup.6 representa o phenyl ou o pyridyl (wherein o N está em posição 2 ou 3) e é substituído opcionalmente por um ou mais halogênio, CF.sub.3, C.sub.1-6 em linha reta ou alkyl ramificado (substituído opcionalmente pelo halogênio), com a provisão que quando R.sup.6 for pyridyl, o N é unsubstituted. R.sup.7 representa o alkyl C.sub.1-6, (substituído opcionalmente por um ou mais halogênio), -- C.sub.0-8 alkyl-5 membered o heteroaryl, C.sub.0-6 alkyl-(O).sub.n - phenyl, wherein n é 0 ou 1, com o proviso que quando R.sup.1 e R.sup.2 são methyl, R.sup.8 e R.sup.9 é H, R.sup.5 é H, então R.sup.7 não pode ser CH.sub.3 ou CF.sub.3.

 
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