This invention relates to new 1,3-dihydro-6-methyl-furo-(3,4-c)-pyridine derivatives of the general formula: ##STR1## wherein, each of A.sub.1 and A.sub.2 represents various hydrocarbon groups, to pharmaceutically acceptable salts of them, to a process for the preparation of said derivatives from the corresponding 6-hydroxy compounds, treated by ethyl bromoacetate and then hydrolyzed. The invention further provides pharmaceutical compositions wherein said derivatives are used as active ingredients. The compounds are useful as diuretics, in lowering blood pressure and as antihistaminics.
本发明涉及一种新的1,3-二氢-6-甲基
呋喃-(3,4-c)-
吡啶衍生物,其一般式为:##STR1## 其中,A.sub.1和A.sub.2各自代表不同的碳氢基团,以及它们的药学上可接受的盐,以及从相应的6-羟基化合物经
乙酰溴酸
乙酯处理然后
水解制备上述衍
生物的方法。本发明还提供了制药组合物,其中上述衍
生物被用作活性成分。该化合物可用作利尿剂,降低血压和
抗组胺药。