申请人:Suzuki Hideyuki
公开号:US20100256355A1
公开(公告)日:2010-10-07
The present invention provides a novel oxazolidinone derivative of the formula (I):
wherein
Ring A is
(A-1) a 7-membered monocyclic heterocycle containing three N atoms;
(A-2) a 7-membered monocyclic heterocycle containing two N atoms and one O atom; or
(A-3) a 7-membered monocyclic heterocycle containing two N atoms and one S atom, SO or SO
2
,
wherein said monocyclic heterocycle is optionally substituted, optionally unsaturated and optionally fused with another ring;
X
1
is a single bond, or a heteroatom-containing group selected from the group consisting of —O—, —S—, —NR
2
—, —CO—, —CS—, —CONR
3
—, —NR
4
CO—, —SO
2
NR
5
—, and —NR
6
SO
2
—, wherein R
2
, R
3
, R
4
, R
5
and R
6
are independently hydrogen or lower alkyl, or lower alkylene or lower alkenylene each optionally interrupted by said heteroatom-containing group;
Ring B is optionally substituted carbocycle or optionally substituted heterocycle; and
R
1
is hydrogen, or an organic residue which is able to bind to the
5
-position of the oxazolidinone ring in oxazolidinone antimicrobial agents,
pharmaceutically acceptable salts and solvates thereof which are useful as an antibacterial agent.