A condensed-indan derivative represented by formula (1) and a pharmaceutically acceptable salt thereof: ##STR1## wherein ring A represents an optionally substituted naphthalene ring, ring B represents an optionally substituted benzene ring or a benzene ring having a lower alkylenedioxy group. Y represents --N.dbd.CR-- or --CR.dbd.N--, R represents a --NR.sub.1 R.sub.2 group, an optionally substituted nitrogen-containing heterocyclic group or a --OR.sub.3 group, wherein R.sub.1 and R.sub.2 are the same or different and each is a hydrogen atom; a phenyl group; an optionally substituted nitrogen-containing heterocyclic group; or a lower alkyl group which may be substituted by at least one selected from the group consisting of an optionally substituted amino group, a lower alkoxy group, a phenyl group, a nitrogen-containing heterocyclic group, an amine oxide group substituted by a lower alkyl group or a hydroxyl group(s); R.sub.3 represents a lower alkyl group optionally substituted by a substituted amino group.
                            一种由式(1)表示的紧缩印度衍
生物及其药学上可接受的盐:##STR1## 其中环A代表可选取代的
萘环,环B代表可选取代的苯环或具有较低的烷基二氧基基团的苯环。Y代表--N.dbd.CR--或--CR.dbd.N--,R代表--NR.sub.1 R.sub.2基团,可选取代的含氮杂环基团或--OR.sub.3基团,其中R.sub.1和R.sub.2相同或不同,每个都是氢原子;苯基;可选取代的含氮杂环基团;或可由选自选组中的至少一种取代的低烷基基团,所述选组由可选取代的
氨基基团,低烷氧基,苯基,含氮杂环基团,被低烷基取代的胺氧基团或羟基(s)组成;R.sub.3代表可选取代的被取代
氨基基团取代的低烷基基团。