申请人:Nishitani Yasuhiro
公开号:US20110190254A1
公开(公告)日:2011-08-04
The present invention provides Cephem compounds which have a wide antimicrobial spectrum and have potent antimicrobial activity against beta-lactamase producing Gram negative bacteria as follows:
A compound of the formula:
wherein,
X is N, CH or C—Cl;
T is S or the like;
A and G are lower alkylene or the like;
B is a single bond or the like;
D is a single bond, —NR
7
—, —CO—, —CO—NR
7
—, —NR
7
—CO—, —NR
7
—CO—NR
7
—, or the like;
E is optionally substituted lower alkylene;
F is a single bond or optionally substituted phenylene;
R
3
, R
4
, R
5
and R
6
each is independently hydrogen, halogene, nitrile, or the like;
or an ester, a compound protected at the amino on the ring in the 7-side chain, a pharmaceutically acceptable salt, or a solvate thereof.