New compound and its preparation

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 5/08 (2006.01) A61K 38/06 (2006.01) C07K 5/02 (2006.01) C07K 5/083 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2165790

A compound of formula (1) in which R4 is acyl, R5 is lower alkyl, R6 is optionally substituted ar(lower)alkyl or optionally substituted heterocyclic-(lower)alkyl, R7 is lower alkyl or lower alkylthio(lower)alkyl, R8 is carboxy or protected carboxy, A is lower alkylene, Z is a group of formula (2) wherein R1 is hydrogen, lower alkyl, common amino-protective group or optionally substituted ar(lower)alkyl, R2 is hydrogen, lower alkyl, optionally substituted ar(lower)alkyl, optionally substituted heterocyclic-(lower)alkyl, optionally substituted cyclo(lower)alkyl(lower)alkyl, common amino-protective group, amino(or protected amino)(lower)alkyl, optionally substituted heterocyclic- carbonyl or cyclo(lower)alkyl, and R3 is optionally substituted heterocyclic(lower)alkyl, and m is an integer of 0 to 2, or pharmaceutically acceptable salts thereof, useful as endothelin antagonist.

Composé de la formule (1), dans laquelle R<4> représente acyle, R<5> représente est alkyle inférieur, R<6> représente est aralkyle(inférieur) facultativement substitué ou alkyle(inférieur)hétérocyclique facultativement substitué, R<7> représente alkyle inférieur ou alkylthio-alkyle(inférieur), R<8> représente carboxy ou carboxy protégé, A représente alkylène inférieur, Z représente un groupe de la formule (2), dans laquelle R<1> représente hydrogène, alkyle inférieur, un groupe amino protecteur commun ou aralkyle(inférieur) facultativement substitué, R<2> représente hydrogène, alkyle inférieur, aralkyle (inférieur) facultativement substitué, alkyle(inférieur)hétérocyclique facultativement substitué, cycloalkyle(inférieur)alkyle(inférieur) facultativement substitué, un groupe amino protecteur commun, amino (ou amino protégé) alkyle(inférieur), cycloalkyle(inférieur) ou carbonyle hétécyclique facultativement substitué, et R<3> représente alkyle(inférieur) hétérocyclique facultativement substitué et m représente un entier de 0 à 2, ou des sels pharmaceutiquement acceptables de ce composé, utiles comme antagoniste de l'endothéline.

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