Cephem compounds

Details Cephem compounds Cephem compounds

2007-03-20

2007-03-20

Berch, Mark L. (Department: 1624)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Heterocyclic carbon compounds containing a hetero ring...

C540S222000

Reexamination Certificate

active

10942916

ABSTRACT:
The present invention relates to a compound of the formula [I]:wherein R1is lower alkyl or hydroxy(lower)alkyl, andR2is hydrogen or amino protecting group, orR1and R2are bonded together and form lower alkylene;R is -A-R6wherein A is bond, —NHCO—(CH2CO)n—, lower alkylene, —NH—CO—CO— or the like, andR6iswherein R7, R8, R9and R10are independently amino, guanidino, amidino or the like;R4is carboxy or protected carboxy; andR5is amino or protected amino, 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.

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