The invention concerns new compounds of formula
in which R1 is lower alkyl: R2 is hydrogen or lower alkyl R3 and R4 each independently is hydrogen, lower alkyl, halo, nitro, trifluoromethyl or lower alkoxy: R5 and R6 each independently is hydrogen or lower alkyl or R5 and R6 together with the nitrogen atom form a pyrrol-1-yl, piperidino or morpholino ring: R7 is hydrogen or lower alkyl; Alk1 and Alk2 each independently is a straight or branched chain lower alkylene having one to six carbon atoms: and X is oxa or thia, and therapeutically acceptable acid addition salts thereof.
The above compounds are diuretic agents, which also possess anti-hypertensive activity. They may be used alone or with other diuretic agents Pharmaceutical compositions containing the compounds and processes for preparing the compounds are also described.
本发明涉及式如下的新化合物
其中 R1 是低级烷基R3和R4各自独立地为氢、低级烷基、卤代、硝基、三
氟甲基或低级烷氧基:R5 和 R6 各自独立地为氢或低级烷基,或 R5 和 R6 与氮原子一起形成
吡咯-1-基、
哌啶基或吗啉基环:R7是氢或低级烷基;Alk1和Alk2各自独立地是具有1至6个碳原子的直链或支链低级亚烷基:X是oxa或thia,及其治疗上可接受的酸加成盐。
上述化合物是利尿剂,也具有抗高血压活性。它们可单独使用,也可与其他利尿剂一起使用 含有这些化合物的药物组合物和制备这些化合物的工艺也已描述。