1,2,4-Triazole derivatives, processes for their production and pharmaceutical compositions containing them
申请人:GLAXO GROUP LIMITED
公开号:EP0016565A1
公开(公告)日:1980-10-01
The invention relates to compounds of the general formula (I)
and physiologically acceptable salts, hydrates and bioprecursors thereof, in which
R1 and R2, which may be the same of different, each represent hydrogen, C1-10 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, trifluoroalkyl, or alkyl substituted by hydroxy, alkoxy, amino, alkylamino dialkylamino or cycloalkyl or R, and R2 may together with the nitrogen atom to which they are attached form a 5 to 10 membered ring which may be saturated or may contain at least one double bond, may be unsubstituted or may be substituted by one or more C1-3 alkyl groups or a hydroxy group and/or may contain another heteroatom which is oxygen or sulphur;
Alk represents a straight or branched alkylene chain of 1 to 6 carbon atoms,
Q represents a furan or thiophene ring in which incorporation into the rest of the molecule is through bonds at the 2-and 5- positions, the furan ring optionally bearing a further substituent R6 adjacent to the group R 1R2N-Alk, or Q represents a benzene ring in which incorporation into the rest of the molecule is through bonds at the 1 - and 3- or 1 - and 4. positions;
R4 represents halogen or C1-4 alkyl which may be substi. tuted by hydroxy or C1-4 alkoxy; X represents -CH2-, -0-, -S- or
where R5 represents hydrogen or methyl;
n represents zero, 1 or 2;
M represents 2, 3 or 4;
R represents hydrogen, alkyl, alkenyl, aralkyl, hydroxyalkyl with at least two carbon atoms, alkoxyalkyl, or aryl, and
R4 represents hydrogen, alkyl, alkenyl, aryl, aralkyl, hydroxyalkyl, acyloxyalkyl, alkoxyalkyl, aryloxyalkyl, aralkyloxyalkyl, aminoalkyl, alkylaminoalkyl, dialkylaminoalkyl, hydroxy, alkoxy, alkylthio or halogen or the group NR7R8 where
R7 represents hydrogen, alkyl, alkenyl or aralkyl or
R6 represents the group COR9 where R9 represents hydrogen, alkyl, aryl, aralkyl, alkoxy, heteroaryl or monocyclic heteroarylalkyl or R4 represents the group SO2R10 where R10 represents alkyl or aryl, or R8 represents the group
where Y is oxygen or sulphur and R 11 represents hydrogen, alkyl, cycloalkyl, aryl or aralkyl.
The compounds of formula (I) show pharmacological activity as selective histamine H2- antagonists.
本发明涉及通式 (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
R1和R2(可以相同或不同)分别代表氢、C1-10烷基、环烷基、烯基、炔基、芳烷基、三氟烷基或被羟基、烷氧基、氨基、烷基氨基二烷基氨基或环烷基取代的烷基或 R、和 R2 可与它们所连接的氮原子一起形成一个 5 至 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,也可以是被一个或多个 C1-3 烷基或羟基取代的,和/或可以含有另一个氧或硫的杂原子;
烷基代表 1-6 个碳原子的直链或支链亚烷基、
Q 代表呋喃或噻吩环,通过 2-位和 5-位上的键与分子的其余部分结合,呋喃环可选择带有与基团 R 1R2N-Alk 相邻的另一个取代基 R6,或 Q 代表苯环,通过 1-位和 3-位或 1-位和 4-位上的键与分子的其余部分结合;
R4 代表卤素或可被羟基或 C1-4 烷氧基取代的 C1-4 烷基; X 代表-CH2-、-0-、-S- 或-CH2-。
其中 R5 代表氢或甲基;
n 代表零、1 或 2;
M 代表 2、3 或 4;
R 代表氢、烷基、烯基、芳基、至少含有两个碳原子的羟烷基、烷氧基烷基或芳基,以及
R4 代表氢、烷基、烯基、芳基、芳烷基、羟基烷基、酰氧基烷基、烷氧基烷基、芳氧基烷基、芳基氧基烷基、氨基烷基、烷基氨基烷基、二烷基氨基烷基、羟基、烷氧基、烷硫基或卤素或基团 NR7R8,其中
R7 代表氢、烷基、烯基或芳烷基或
R6 代表基团 COR9(其中 R9 代表氢、烷基、芳基、芳烷基、烷氧基、杂芳基或单环杂 芳烷基),或 R4 代表基团 SO2R10(其中 R10 代表烷基或芳基),或 R8 代表基团 NR7R8(其中 R7 代表氢、烷基、烯基或芳烷基)。
其中 Y 是氧或硫,R 11 代表氢、烷基、环烷基、芳基或芳烷基。
式(I)化合物具有选择性组胺 H2- 拮抗剂的药理活性。