申请人:GLAXO GROUP LIMITED
公开号:EP0071434A2
公开(公告)日:1983-02-09
The invention relates to compounds of the general formula (I)
and physiologically acceptable salts, hydrates and bioprecursors thereof, in which
R1 represents hydrogen, C1-14 alkyl, cycloalkyl, alkenyl, alkynyl, aralkyl, trifluoroalkyl, heteroaralkyl or alkyl substituted by cycloalkyl, hydroxy, alkoxy, amino, alkylamino or dialkylamino; and
R2 represents hydrogen or C1-4 alkyl group;
or R1 and R2 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 selected from oxygen or sulphur:
Alk represents a straight or branched alkylene chain of 1 to 3 carbon atoms;
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:
R5 represents hydrogen or acyl;
n and m, which may be the same or different, are each 1 or 2; Z represents one of the groups
where X represents NCN, NS02Methyl, NS02Phenyl or CHNO2;
R8 represents alkyl;
A represents N and B represents CR7; or
A represents CR7 and B represents N; or
A and B both represent N;
R3 represents hydrogen, alkyl, alkenyl, aralkyl, hydroxy C2-6 alkyl, alkoxy C2-6 alkyl or C1-4 alkanoyloxy C2-6 alkyl;
R7 represents hydrogen, alkyl, alkenyl, aralkyl, acyloxyalkyl, alkylthioalkyl, arylthioalkyl, aryloxyalkyl, aralkyloxyalkyl, or the group (CH2)qR8 where q is zero, 1, 2, 3, 4, or 6 and the alkylene chain (CH2)q may be straight or branched, and
R6 is hydroxy, alkoxy, nitro, heteroaryl, tetrahydropyranyloxy or CH2NHC(=X)NHR9 where X is as defined above, and R9 is alkyl;
or R6 is the group NR10R11, where R10 is hydrogen or alkyl; and R11 is hydrogen, alkyl, alkenyl, aryl, aralkyl, or heteroaralkyl, or R11 is the group SO2R12 where R12 is alkyl or aryl; or R11 is the group COR13 where R,3 is hydrogen, alkyl, aryl, aralkyl, alkoxy, halomethyl, heteroaryl, heteroaralkyl or the group NHR14 where R14 is hydrogen, alkyl, cycloalkyl, aryl or aralkyl; or R10 and R11 together represent the group =CR15R16 where R15 represents aryl or heteroaryl and R16 represents hydrogen or alkyl;
or R6 is the group SO2R17 in which R17 is hydroxy, alkyl, aryl or the group NR18R19 where R,s and R19, which may be the same or different, each represent hydrogen or alkyl;
or R6 is the group COR20 where R20 is hydrogen, hydroxy, alkoxy, aryloxy, aralkyloxy, alkyl, aryl, aralkyl or the group NRZ21R22 where R21 is hydrogen or alkyl optionally substituted by a hydroxy or alkoxy group; and R22 is hydrogen, alkyl (optionally substituted by a hydroxy or alkoxy group), alkenyl, aryl, aralkyl or cycloalkyl, or NR21R22 forms a 5 to 8 membered ring which may contain another heteroatom, e.g. oxygen, or a double bond and/or may be substituted by hydroxy or one or two C1-3 alkyl groups; or R6 is the group CR23=NR24 where R23 is hydrogen, alkyl, aryl or aralkyl and R24 is hydroxy, alkoxy, aralkyloxy or -NHC(=Y)NH2 where Y is oxygen or sulphur;
or when A represents CR7 and B represents N, the groups R3 and R7 taken together represent (̵ CH=CH )̵2 or - (CH2)4;
with the proviso that when the group R6 contains a carbon atom through which it is linked to the alkylene group (CH2)q then the total number of carbon atoms in the resulting chain is not greater than 6 (i.e. q is not greater than 5);
R4 represents phenyt, phenoxy or pyridinyl which may optionally be substituted by one or more halogen, alkyl, alkoxyalkyl or alkoxy groups or by a methylenedioxy group;
p represents an integer which is 1, 2 or 3;
The compounds 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 代表氢、C1-14 烷基、环烷基、烯基、炔基、芳烷基、三氟烷基、杂烷基或被环烷基、羟基、烷氧基、氨基、烷基氨基或二烷基氨基取代的烷基;和
R2 代表氢或 C1-4 烷基;
或 R1 和 R2 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 1 至 3 个碳原子的直链或支链亚烷基链;
Q 代表苯环,通过 1-和 3-或 1-和 4-位置的键与分子的其余部分结合:
R5 代表氢或酰基;
n 和 m(可以相同或不同)均为 1 或 2; Z 代表以下基团之一
其中 X 代表 NCN、NS02 甲基、NS02 苯基或 CHNO2;
R8 代表烷基;
A 代表 N,B 代表 CR7;或
A 代表 CR7,B 代表 N;或
A 和 B 均代表 N;
R3 代表氢、烷基、烯基、芳烷基、羟基 C2-6 烷基、烷氧基 C2-6 烷基或 C1-4 烷酰氧基 C2-6 烷基;
R7 代表氢、烷基、烯基、芳烷基、酰氧基烷基、烷硫基烷基、芳硫基烷基、芳氧基烷基、芳烷氧基烷基或基团 (CH2)qR8,其中 q 为零、1、2、3、4 或 6,亚烷基链 (CH2)q 可以是直链或支链,以及
R6 是羟基、烷氧基、硝基、杂芳基、四氢吡喃氧基或 CH2NHC(=X)NHR9 其中 X 如上定义,R9 是烷基;
或 R6 为基团 NR10R11,其中 R10 为氢或烷基;且 R11 为氢、烷基、烯基、芳基、芳烷基或杂烷基,或 R11 为基团 SO2R12,其中 R12 为烷基或芳基;或 R11 是基团 COR13(其中 R,3 是氢、烷基、芳基、芳烷基、烷氧基、卤代甲基、杂芳基、杂芳烷基)或基团 NHR14(其中 R14 是氢、烷基、环烷基、芳基或芳烷基);或 R10 和 R11 共同代表基团 =CR15R16(其中 R15 代表芳基或杂芳基,R16 代表氢或烷基);
或 R6 是基团 SO2R17,其中 R17 是羟基、烷基、芳基或基团 NR18R19,其中 R、s 和 R19 可以相同或不同,各自代表氢或烷基;
或 R6 是基团 COR20,其中 R20 是氢、羟基、烷氧基、芳氧基、烷氧基、芳基、芳烷基或基团 NRZ21R22,其中 R21 是氢或任选被羟基或烷氧基取代的烷基;以及 R22 是氢、烷基(任选被羟基或烷氧基取代)、烯基、芳基、芳烷基或环烷基,或 NR21R22 形成一个 5 至 8 个成员的环,该环可能含有另一个杂原子,例如:氧,或双键。或 R6 为基团 CR23=NR24 其中 R23 为氢、烷基、芳基或芳烷基,R24 为羟基、烷氧基、芳氧基或 -NHC(=Y)NH2 其中 Y 为氧或硫;
或当 A 代表 CR7 而 B 代表 N 时,基团 R3 和 R7 合在一起代表 (̵ CH=CH )̵2 或 - (CH2)4;
但条件是,当基团 R6 包含一个碳原子,通过该碳原子与亚烷基 (CH2)q 连接时,所得链中的碳原子总数不大于 6(即 q 不大于 5);
R4 代表苯基、苯氧基或吡啶基,可任选被一个或多个卤素、烷基、烷氧基烷基或 烷氧基基团或亚甲基二氧基基团取代;
p 代表 1、2 或 3 的整数;
这些化合物具有选择性组胺 H2- 拮抗剂的药理活性。