申请人:East Peter Stephen
公开号:US20060172990A1
公开(公告)日:2006-08-03
Compounds of formula (I) have antibacterial activity, wherein Q represents —N(OH)CH(═O) or —C(═)NH(OH); Y represents —C(═O)—, —C(═S)—, —S(═O)—, or —SO
2
—; R
1
represents hydrogen, C
1
-C
6
alkyl or C
1
-C
6
alkyl substituted by one or more halogen atoms, or, except when Q is a radical of formula —N(OH)CH(═O), a hydroxy, C
1
-C
6
alkoxy, C
1
-C
6
alkenyloxy, halogen, amino, C
1
-C
6
alkylamino, or di-(C
1
-C
6
alkyl)amino group; R
2
represents a substituted or unsubstituted C
1
-C
6
alkyl, C
1
-C
3
alkyl-O—C
1
-C
3
alkyl, C
1
-C
3
alkyl-C
1
-C
3
alkyl, cycloalkyl(C
1
-C
3
alkyl)-, aryl(C
1
-C
3
alkyl)-, heterocyclyl(C
1
-C
3
alkyl)-, or R
1
R
2
N—C
1
-C
3
alkyl group wherein R
1
represents hydrogen or C
1
-C
3
alkyl and R
2
represents C
1
-C
3
alkyl, or R
1
R
2
N— represents a cyclic amino group; R
3
and R
5
independently represent hydrogen or a substituted or unsubstituted C
1
-C
6
alkyl group or R
3
and R
5
taken together with the carbon and nitrogen atoms to which they are respectively attached form a saturated heterocyclic ring of from 5 to 7 ring atoms, which may be fused to a second carbocyclic or heterocyclic ring, either of which rings may optionally be substituted; R
4
represents hydrogen or a substituted or unsubstituted C
1
-C
6
alkyl, C
2
-C
6
alkenyl, C
2
-C
6
alkynyl, cycloalkyl, aryl, heterocyclyl, C
1
-C
3
alkyl-O—C
1
-C
3
alkyl, C
1
-C
3
alkyl-S—C
1
-C
3
alkyl, C
1
-C
3
alkyl-NH—(C
1
-C
3
alkyl)-, cycloalkyl(C
1
-C
3
alkyl)-, heterocyclic(C
1
-C
3
alkyl)-group; and A represents a primary, secondary or tertiary amino group or a group —R
6
, —OR
6
, wherein R
6
is a substituted or unsubstituted C
1
-C
6
alkyl, C
2
-C
6
alkenyl, C
2
-C
6
alkynyl, cycloalkyl, aryl, heterocyclyl, C
1
-C
3
alkyl-O—(C
1
-C
3
alky)-1, C
1
-C
3
alkyl-S—(C
1
-C
3
alkyl)-, C
1
-C
3
alkyl-NH—(C
1
-C
3
alkyl)-, cycloalkyl(C
1
-C
3
alkyl)-, heterocyclic(C
1
-C
3
alky)-1 or aryl(C
1
-C
3
alkyl)-group.