Benzimidazole derivatives, compositions containing them, preparation therof and uses thereof
申请人:Liu Ziping
公开号:US20070060583A1
公开(公告)日:2007-03-15
Compounds of formula (I) or pharmaceutically acceptable salts thereof: wherein R
1
, R
2
, R
3
, R
4
and Z are as defined in the specification as well as salts and pharmaceutical compositions including the compounds are prepared. They are useful in therapy, in particular in the management of pain.