Compounds of the formula
inhibit the activity of endothelin. The symbols are defined as follows:
R1 and R2 are each directly bonded to a ring carbon and are each independently
(a) hydrogen;
(b) alkyl or alkoxy;
(c) hydroxyl;
(d) halo; or
(e) amino;
R3 and R4 are each directly bonded to a ring carbon and are each independently
(a) hydrogen;
(b) alkyl alkenyl, alkynyl, alkoxy, cycloalkyl, cycloalkylalkyl, cycloalkenyl, cycloalkenylalkyl, aryl, aryloxy, aralkyl or aralkoxy, any of which may be substituted with Z1, Z2 and Z3;
(c) halo;
(d) hydroxyl;
(e) cyano;
(f) nitro;
(g) -C(O)H or -C(O)R5;
(h) -CO2H or -CO2R5;
(i) -Z4-NR6R7;
(j) -Z4-N(R10)-Z5-NR8R9; or
(k) R3 and R4 together may also be alkylene or alkenylene, either of which may be substituted with Z1, Z2 and Z3, completing a 4- to 8-membered saturated, unsaturated or aromatic ring together with the carbon atoms to which they are attached;
and the remaining symbols are as defined in the specification.
式中化合物
抑制内皮素的活性。符号定义如下:
R1 和 R2 各自直接与一个环碳键结合,且各自独立地
(a) 氢
(b) 烷基或烷氧基
(c) 羟基
(d) 卤;或
(e)
氨基;
R3 和 R4 各自直接与一个环碳键结合,且各自独立存在
(a) 氢
(b) 烷基烯基、炔基、烷氧基、环烷基、环烷基烷基、环烯基、环炔基烷基、芳基、芳氧基、芳烷基或芳烷氧基,其中任何一个可被 Z1、Z2 和 Z3 取代;
(c) 卤
(d) 羟基
(e)
氰基
(f) 硝基
(g) -C(O)H 或 -C(O)R5
(h) -CO2H或-CO2R5;
(i) -Z4-NR6R7
(j) -Z4-N(R10)-Z5-NR8R9; 或
(k) R3 和 R4 也可以是亚烷基或烯基,其中任一亚烷基或烯基可被 Z1、Z2 和 Z3 取代,与它们所连接的碳原子一起组成一个 4 至 8 元饱和、不饱和或芳香环;
其余符号如说明书中所定义。