申请人:Suzuki Hideyuki
公开号:US20090299059A1
公开(公告)日:2009-12-03
The invention provides a novel oxazolidinone derivative represented by the formula (I):
wherein
Ring A is optionally substituted or fused and represents
(A-1) at least 7-membered monocyclic hetero ring containing at least three N atoms; (A-2) at least 6-membered monocyclic hetero ring containing at least two N atoms and at least one O atom; or (A-3) at least 7-membered monocyclic hetero ring containing at least two N atoms and at least one S atom;
X
1
is a single bond, —O—, —S—, —NR
2
—, —CO—, —CS—, —CONR
3
—, —NR
4
CO—, —SO
2
NR
5
—, and —NR
6
SO
2
— (wherein R
2
-R
6
are independently hydrogen or lower alkyl), or lower alkylene or lower alkenylene in which one of the preceding groups may intervene;
Ring B is optionally substituted carbocycle or optionally substituted heterocycle;
R
1
is hydrogen, or an organic residue which is able to bind to the 5-position of oxazolidinone ring in oxazolidinone antimicrobial agent,
and an antibacterial agent containing the same.