申请人:Elmaleh R. David
公开号:US20050222166A1
公开(公告)日:2005-10-06
Piperidine or piperazine compounds useful for treating neurodegenerated diseases characterized by the lack of dopamine neurons activity or for imaging the dopamine neurons are provided. The compounds are characterized by the formulae:
wherein:
n is an integer of 1 to 6; X, Y, Z
1
and Z
2
can be the same or different and are hydrogen, halo, haloalkyl, alkyl, aryl, (C
1
-C
6
) alkoxy, N-alkyl,(C
2
-C
6
) acyloxy, N-alkylene, —SH, —SR, wherein R is from the same group as R
1
and R
2
and can be the same or different than R
1
and R
2
, amino, nitro, cyano, hydroxy, C(═O) OR
6
, —C(═O) NR
5
R
4
, NR
3
R
2
, or S(αO)
k
R
1
wherein
k
is 1 or 2, and R
1
to R
6
are independently hydrogen or (C
1
-C
6
) alkyl;
R
1
, and R
2
can be the same or different and are hydrogen, (C
1
-C
6
) alkyl, hydroxyalkyl or mercaptoalkyl, —C(═O) OR
1
, cyano, (C
1
-C
6
) alkenyl, (C
2
-C
6
) alkynyl, or 1,2,4-oxadiazol-5-yl optionally substituted at the 3-position by Z
4
wherein any (C
1
-C
6
) alky, (C
1
-C
6
) alkanoyl, (C
2
-C
6
) alkenyl or (C
2
-C
6
) alkynyl can optionally be substituted by 1, 2 or 3 Z;
R
7
can be hydrogen, O or phenyl
R
8
can be hydrogen, phenyl, halophenyl, nitrophenyl, pyridyl, piperonyl or sulfoxonitrophenyl
Z
4
is (C
1
-C
6
) alkyl or phenyl, optionally substituted by 1, 2 or 3 Z
1
W is O or S
T is amino or C
1
-C
6
aminoalkyl A is N or C
T is C
1
-C
6
alklyl or sulfonyl and
V is alkyl (C
0
-C
6
), alkenyl, alkynyl, haloaryl, alkyl phenol, alkyl
halophenyl, and R
1
or R
2
as indicated above and φ is phenyl, naphthyl, thienyl or pyridinyl.
提供用于治疗由多巴胺神经元活动缺乏特征的神经退行性疾病或用于成像多巴胺神经元的哌啶或哌嗪化合物。这些化合物的特征是由以下公式确定:其中:n为1至6的整数;X、Y、Z1和Z2可以相同也可以不同,是氢、卤素、卤代烷基、烷基、芳基、(C1-C6)烷氧基、N-烷基、(C2-C6)酰氧基、N-烷基烯、—SH、—SR,其中R与R1和R2相同且可以与R1和R2不同,氨基、硝基、氰基、羟基、C(═O)OR6、—C(═O)NR5R4、NR3R2或S(αO)kR1,其中k为1或2,R1至R6独立地为氢或(C1-C6)烷基;R1和R2可以相同也可以不同,是氢、(C1-C6)烷基、羟基烷基或巯基烷基、—C(═O)OR1、氰基、(C1-C6)烯基、(C2-C6)炔基或1,2,4-噁二唑-5-基,在3-位可选择地由Z4取代,其中任何(C1-C6)烷基、(C1-C6)酰基、(C2-C6)烯基或(C2-C6)炔基可选择地由1、2或3个Z取代;R7可以是氢、氧或苯基;R8可以是氢、苯基、卤苯基、硝基苯基、吡啶基、哌罗基或磺氧硝基苯基;Z4是(C1-C6)烷基或苯基,可选择地由1、2或3个Z取代;W是氧或硫;T是氨基或C1-C6氨基烷基;A是N或C;T是C1-C6烷基或磺酰基;V是烷基(C0-C6)、烯基、炔基、卤代芳基、烷基酚、烷基卤苯基,以及如上所示的R1或R2;φ是苯基、萘基、噻吩基或吡啉基。