申请人:The Boots Company PLC
公开号:EP0172631A1
公开(公告)日:1986-02-26
Compounds of formula
in which R1 and R2, which may be the same or different, are hydrogen, a C1 to C3 alkyl group or R1 and R2 together with the nitrogen to which they are attached form an optionally substituted heterocyclic ring; R3 and R4, which may be the same or different are hydrogen, a C, to C3 alkyl or an optionally substituted C3 to C6 cycloalkyl group, or R3 and R4 together with the nitrogen to which they are attached form an optionally substituted heterocyclic ring; m is 0, 1 or 2; p is 0, 1 or 2; E is an alkylene group connected to or interrupted by an oxygen or a sulphur atom; J is hydrogen or a substituent group; and their pharmaceutically acceptable salts have utility as histamine H2-receptor antagonists.
式化合物
其中 R1 和 R2(可以相同或不同)是氢、C1 至 C3 烷基或 R1 和 R2 与它们连接的氮一起形成任选取代的杂环;R3 和 R4(可以相同或不同)是氢、C, 至 C3 烷基或任选取代的 C3 至 C6 环烷基或 R3 和 R4 与它们连接的氮一起形成任选取代的杂环;m 是 0、1 或 2;p 是 0、1 或 2;E 是与氧原子或硫原子相连或被氧原子或硫原子打断的亚烷基;J 是氢或取代基;它们的药学上可接受的盐类具有组胺 H2 受体拮抗剂的作用。