Cephem compounds
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United States of America Patent
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-
Feb 20, 2007
Grant Date -
Dec 9, 2004
app pub date -
Apr 24, 2002
filing date -
May 1, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a compound of the formula [I]: wherein A is lower alkylene or lower alkenylene; R.sup.1 is lower alkyl, hydroxy(lower)alkyl, protected hydroxy(lower)alkyl, amino(lower)alkyl or protected amino(lower)alkyl, and R.sup.2 is hydrogen or amino protecting group, or R.sup.1 and R.sup.2 are bonded together and form lower alkylene; R.sup.3 and R.sup.5 are independently amino or protected amino; and R.sup.4 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.
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