Patent Number: 8,722,656

Title: Cephalosporins useful as antibacterial agents

Abstract: The present invention provides novel cephalosporin derivatives of formula I, ##STR00001## their analogues, their use for the treatment of infections in mammals, pharmaceutical composition containing these novel compounds, and methods for the preparation of these compounds.

Inventors: Duclos; Brian A. (Kalamazoo, MI), Ellsworth; Edmund L. (Portage, MI), Ewin; Richard A. (Kalamazoo, MI), Johnson; Paul D. (Kalamazoo, MI), Johnson; Timothy A. (Richland, MI), Kyne; Graham M. (Portage, MI), Sheehan; Susan M. K. (Galesburg, MI), Vairagoundar; Rajendran (Kalamazoo, MI)

Assignee: Zoetis LLC

International Classification: A61K 31/545 (20060101); C07D 501/60 (20060101)

Expiration Date: 5/13/12018