Substituted phthalides, a process for their preparations and pharmaceutical compositions containing them
申请人:——
公开号:US20030220393A1
公开(公告)日:2003-11-27
The invention relates to compounds of formula (I): wherein R
1
represents an alkyl or ureido group, R
2
represents an alkyl group or a hydrogen atom, or R
1
and R
2
together form a 5- or 6-membered ring, R
3
represents a group CN, NO
2
, NR
a
R′
a
, NR
a
SO
2
,R′
a
CZR
5
or CZNR
a
R′
a
, R
4
represents a hydrogen atom or a group R
3
.
1
该发明涉及化合物的结构式(I):其中R1代表烷基或脲基,R2代表烷基或氢原子,或者R1和R2一起形成5-或6-成员环,R3代表-CN、NO2、NRaR′a、NRaSO2、R′aCZR5或CZNRaR′a的基团,R4代表氢原子或基团R3.