申请人:Kobayashi Naotake
公开号:US20090082560A1
公开(公告)日:2009-03-26
A composition having BACE 1 inhibitory activity containing a compound represented by the general formula (I):
wherein ring A is an optionally substituted carbocyclic group or an optionally substituted heterocyclic group;
E is lower alkylene;
X is S, O, or NR
1
;
R
1
is a hydrogen atom or lower alkyl;
R
2a
, R
2b
, R
3a
, R
3b
, R
4a
and R
4b
is each independently a hydrogen atom, halogen, or hydroxy etc.;
n and m are each independently an integer of 0 to 3;
n+m is an integer of 0 to 3;
R
5
is a hydrogen atom or substituted lower alkyl;
its pharmaceutically acceptable salt, or a solvate thereof.