Novel isoxazolylalkylpiperazine derivatives having selective biological activity at dopamine D3 or D4 receptor, and preparation thereof
申请人:——
公开号:US20020119983A1
公开(公告)日:2002-08-29
The present invention relates to a novel isoxazolylalkylpiperazine derivatives having selective biological activity at dopamine D
3
or D
4
receptors represented by the following formula (1), and its preparation method through reductive amination reaction in the presence of reducing agent,
1
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, X and n are the same as defined in the specification.