Amine derivatives, their preparation and pharmaceutical compositions containing them
申请人:GLAXO GROUP LIMITED
公开号:EP0002930A1
公开(公告)日:1979-07-11
The invention relates to compounds of the general formula (I)
and physiologically acceptable salts, N-oxides, hydrates and bioprecursors thereof, in which Y represents =0, =S, =CHNO2 or =NR3 where R3 represents hydrogen, nitro, cyano, lower alkyl, aryl, lower alkylsulphonyl or arylsulphonyl; R1 and R2, which may be the same or different, each represent hydrogen lower alkyl, cycloalkyl, lower alkenyl, aralkyl, hydroxy, lower trifluoroalkyl, lower alkyl substituted by hydroxy, lower alkoxy, amine, lower alkylamino or dialkylamino, or R1 and R2 together with the nitrogen atom to which they are attached form a 5 to 7 membered heterocyclic ring which may contain other heteroatoms or the group
where R4 represents hydrogen or lower alkyl; Q represents a furan or thiophen ring in which incorporation into the rest of the molecule is through bonds at the 2- and 5-positions, or 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;
X represents-CH2-,-O-or-S-;
n represents zero, 1 or 2;
m represents 2, 3 or 4;
Alk represents a straight chain alkylene group of 1 to 3 carbon atoms; (except that n is not zero when X is oxygen and Q is a furan or thiophen ring system)
q represents 2, 3, or 4 or can additionally represent zero or 1 when E is a -CH2-group;
p represents zero, 1 or 2;
E represents-CN2-,-O- or -S-; and
Z represents a monocyclic 5 or 6 membered carbocyclic or heterocyclic aromatic ring which may be optionally substituted by one or more groups or Z represents the group
where
Q' represents any of the rings defined for Q;
Alk' represents any of the groups defined for Alk: and R5 and R6, which may be the same or different, each represent any of the groups defined for R1 and R2; (except that p is not zero when E is oxygen and Q' or Z is a furan or thiophen ring system.
The compounds of formula (I) show pharmacological activity as selective histamine H2-antagonists.
本发明涉及通式(I)化合物
及其生理学上可接受的盐、N-氧化物、水合物和生物前体,其中 Y 代表 =0、=S、=CHNO2 或 =NR3 其中 R3 代表氢、硝基、氰基、低级烷基、芳基、低级烷基磺酰基或芳基磺酰基;R1 和 R2(可以相同或不同)分别代表氢、低级烷基、环烷基、低级烯基、芳烷基、羟基、低级三氟烷基、被羟基取代的低级烷基、低级烷氧基、胺、低级烷基氨基或二烷基氨基,或 R1 和 R2 与它们所连接的氮原子一起形成一个 5 至 7 个成员的杂环,该杂环可能含有其他杂原子或基团
其中 R4 代表氢或低级烷基;Q 代表呋喃环或噻吩环,通过 2 位和 5 位的键与分子的其余部分结合,或代表苯环,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-CH2-、-O-或-S-;
n 代表零、1 或 2
m 代表 2、3 或 4;
Alk 代表 1 至 3 个碳原子的直链亚烷基;(但当 X 是氧且 Q 是呋喃或噻吩环系时,n 不为零)
q 代表 2、3 或 4,当 E 为-CH2-基团时,可另外代表 0 或 1;
p 代表 0、1 或 2;
E 代表-CN2-、-O-或-S-;以及
Z 代表可被一个或多个基团任选取代的单环 5 或 6 位碳环或杂环芳香环,或 Z 代表以下基团
其中
Q' 代表为 Q 定义的任何环;
Alk' 代表为 Alk 定义的任何基团:以及 R5 和 R6(可以相同或不同)各自代表为 R1 和 R2 定义的任何基团;(但当 E 为氧,且 Q' 或 Z 为呋喃或噻吩环系时,p 不为零。
式(I)化合物具有选择性组胺 H2- 拮抗剂的药理活性。