A compound of the formula (1): wherein R1 represents C1-6 alkyl or H; Y represents -NR2R3 as depicted in formula (B), or a ring of formula (A) whereina represents the point of attachment to the pyrimidinyl ring; R2 represents C1-4halkyI substituted by C1-3 alkoxy; R3 represents C1-4 alkyl; W represents - (CH2)n-; W1 represents -(CH2)P-; n represents 1 or 2 or 3; p represents 1 or 2; R4 represents C1-4 alkoxy, C1-6 alkyl or halogen; and R5 represents halogen or H, provided that, when R4 represents halogen, R5 is not H, or a pharmaceutically acceptable salt thereof, is provided. The compounds of the invention have been found to modulate the histamine H3 receptor.
该式化合物(1)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,或者代表式(A)的环,其中a代表连接到
嘧啶环的连接点;R2代表C1-4烷基,被C1-3烷氧基取代;R3代表C1-4烷基;W代表-(
CH2)n-;W1代表-( )P-;n代表1或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,但当R4代表卤素时,R5不是H,或其药学上可接受的盐。已发现该发明的化合物能够调节
组胺H3受体。