A compound of the formula:
wherein:
R
1
represents C
1-6
alkyl or H; Y represents —NR
2
R
3
as depicted in formula (B), or a ring of formula (A)
wherein
a
represents the point of attachment to the pyrimidinyl ring;
R
2
represents C
1-4
alkyl substituted by C
1-3
alkoxy; R
3
represents C
1-4
alkyl; W represents —(CH
2
)
n
—; W
1
represents —(CH
2
)
p
—; n represents 1 or 2 or 3; p represents 1 or 2; R
4
represents C
1-4
alkoxy, C
1-6
alkyl or halogen; and R
5
represents halogen or H, provided that, when R
4
represents halogen, R
5
is not H, or a pharmaceutically acceptable salt thereof. The compounds of the invention have been found to modulate the histamine H3 receptor.
该化合物的结构如下:其中:R1代表C1-6烷基或H;Y代表如下所示的—NR2R3,或者如下所示的环(A):其中a代表连接到
嘧啶基环的位置;R2代表经C1-3烷氧基取代的C1-4烷基;R3代表C1-4烷基;W代表—(
CH2)n—;W1代表—( )p—;n代表1、2或3;p代表1或2;R4代表C1-4烷氧基、C1-6烷基或卤素;R5代表卤素或H,但要注意,当R4代表卤素时,R5不是H,或其药学上可接受的盐。据发现,该发明的化合物能够调节
组胺H3受体。