Imidazo[4,5-b]pyridiniummethyl-containing cephem compounds...

C - Chemistry – Metallurgy – 07 – D

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C07D 519/06 (2006.01) A61K 31/546 (2006.01) A61P 31/04 (2006.01) C07D 501/57 (2006.01)

Patent

CA 2350905

A cefem compound of the formula (I) shows wide antibacterial spectrum against various pathogenic bacteria including MRSA. Image wherein, X is N or CY and Y is H or halogen; R1 is amino or protected amino; R2 is hydrogen or optionally substituted lower alkyl etc.; R3 is hydrogen etc.; R4 is hydrogen, optionally substituted lower alkyl, or optionally substituted N-containing heterocyclic group etc.; R5 is hydrogen etc.; and a wavy line means syn- or anti-isomerism or a mixture thereof.

La présente invention concerne des composés de céphème représentés par la formule générale (I) et présentant un large spectre antibactérien agissant sur diverses bactéries pathogènes, tout en étant efficaces contre le staphylocoque doré résistant à la méthicilline. Dans cette formule, X est N ou CY, Y étant H ou halogéno. R<1> est amino éventuellement protégé. R<2> est hydrogène, alkyle inférieur éventuellement substitué, etc. R<3> est hydrogène, etc. R<4> est hydrogène, alkyle inférieur éventuellement substitué, hétérocycle azoté éventuellement substitué, etc. R<5> est hydrogène, etc. et les liaisons en lignes brisées signifie synisomérisme ou anti-isomérisme, ou un mélange des deux.

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