申请人:Ayesa Susana
公开号:US20110312964A1
公开(公告)日:2011-12-22
Compounds of the formula I
wherein
R
1a
is H; and R
1b
is C
1
-C
6
alkyl, Carbocyclyl or Het; or
R
1a
and R
1b
together define a saturated cyclic amine with 3-6 ring atoms;
R
2a
and R
2b
are H, halo, C
1
-C
4
alkyl, C
1
-C
4
haloalkyl, C
1
-C
4
alkoxy; or
R
2a
and R
2b
together with the carbon atom to which they are attached form a C
3
-C
6
cycloalkyl;
R
3
is a branched C
5
-C
10
alkyl chain, C
2
-C
4
haloalkyl or C
3
-C
7
cycloalkylmethyl,
R
4
is Het, Carbocyclyl,
optionally substituted as defined in the specification and pharmaceutically acceptable salts,
hydrates and N-oxides thereof; are inhibitors of cathepsin S and have utility in the treatment of psoriasis, autoimmune disorders and other disorders such as asthma, arteriosclerosis, COPD and chronic pain