3,5-Disubstituted-1,2,4-triazole compounds, processes for their preparation and pharmaceutical compositions containing them
申请人:GLAXO GROUP LIMITED
公开号:EP0050407A1
公开(公告)日:1982-04-28
The invention provides compounds of the general formula (I)
and physiologically acceptable salts, hydrates and bioprecursors thereof in which
R, represents hydrogen, C1-10 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, heteroaralkyl, trifluoroalkyl or C1-10 alkyl substituted by hydroxy, alkoxy or dialkylamino; or C,., alkyl substituted by cycloalkyl;
R, represents hydrogen or a C1-4 alkyl group;
or R, and R2 may together with the nitrogen atom to which they are attached form a 5-10 membered ring which may be saturated or may contain at least one double bond, may be unsubstituted or substituted by one or more C1-3 alkyl groups or a hydroxy group and/or may contain another heteroatom, selected from oxygen or sulphur;
Alk represents a straight or branched C1-6 alkylene chain;
Q represents a benzene ring in which incorporation into the rest of the molecule is through bonds at the 1- and 3-positions or 1- and 4-positions;
X represents oxygen, sulphur or a methylene group;
n represents zero, 1 or 2;
m represents 2, 3 or 4 with the proviso that n + m is at least 3;
R3 represents alkenyl, alkoxy or alkyl substituted by hydroxy, acyloxy, alkoxy, amino, alkylamino, dialkylamino, aryl, heteroaryl or C1-4 alkylsulphonyl; or R3 represents COR, or CR4=NOH where R4 represents hydrogen or C1-4 alkyl.
The compounds show pharmacological activity as selective histamine H2-antagonists.
本发明提供通式 (I) 的化合物
及其生理上可接受的盐、水合物和生物前体,其中
R,代表氢、C1-10 烷基、环烷基、烯基、炔基、芳烷基、杂芳烷基、三氟烷基或被羟基、烷氧基或二烷基氨基取代的 C1-10 烷基;或被环烷基取代的 C、...烷基;
R,代表氢或 C1-4 烷基;
或 R 和 R2 可与它们所连接的氮原子一起形成一个 5-10 个成员的环,该环可以是饱和的,也可以含有至少一个双键,可以是未取代的,也可以被一个或多个 C1-3 烷基或羟基取代,和/或可以含有另一个选自氧或硫的杂原子;
Alk 代表直链或支链 C1-6 亚烷基链;
Q 代表苯环,通过 1 位和 3 位或 1 位和 4 位的键与分子的其余部分结合;
X 代表氧、硫或亚甲基;
n 代表零、1 或 2;
m 代表 2、3 或 4,但 n + m 至少为 3;
R3 代表烯基、烷氧基或被羟基、酰氧基、烷氧基、氨基、烷基氨基、二烷基氨基、芳基、杂芳基或 C1-4 烷基磺酰基取代的烷基;或 R3 代表 COR 或 CR4=NOH,其中 R4 代表氢或 C1-4 烷基。
这些化合物具有选择性组胺 H2- 拮抗剂的药理活性。