Cephem compounds

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 501/46 (2006.01) A61K 31/545 (2006.01) C07D 501/00 (2006.01)

Patent

CA 2446099

The present invention relates to a compound of the formula [I]: wherein A is lower alkylene or lower alkenylene; R1 is lower alkyl, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, amino(lower)alkyl or protected amino(lower)alkyl, and R2 is hydrogen or amino protecting group, or R1 and R2 are bonded together and form lower alkylene; R3 and R5 are independently amino or protected amino; and R4 is carboxy or protected carboxy, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.

La présente invention porte sur un composé de la formule (I) dans laquelle A est un alkylène inférieur ou un alcénylène inférieur; R?1¿ est un alkyle inférieur, hydroxyalkyle inférieur, hydroxyalkyle inférieur protégé, amino-alkyle inférieur ou amino-alkyle inférieur protégé et R?2¿ représente hydrogène ou un groupe protégeant amino, ou R?1¿ et R?2¿ sont réunis et forment un alkylène inférieur; R?3¿ et R?5¿ représentent indépendamment amino ou amino protégé; et R?4¿ représente carboxy ou carboxy protégé, ou un sel de ce composé acceptable d'un point de vue pharmaceutique. L'invention porte également sur un procédé de préparation d'un composé de la formule [I] et sur une composition pharmaceutique comprenant un composé de la formule [I] ajouté à un excipient acceptable d'un point de vue pharmaceutique.

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