Indoleacetic acid derivatives, process for their preparation, and medicines containing same as active ingredients

Abstract

The present invention relates to an indoleacetic acid derivative and a salt thereof expressed by the following formula (I): ##STR1## [wherein X denotes a piperidino group, 1-pyrrolidinyl group or 3-hydroxy-1-pyrrolidinyl group; Y denotes ##STR2## (wherein R.sup.1 denotes a hydrogen atom or a lower alkyl group, and 1 denotes 0, 1 2) or ##STR3## (wherein R.sup.2 denotes a hydrogen atom, a lower alkyl group or a hydroxyl group, m denotes 0, 1 or 2, and n denotes 1, 2 or 3)]. The present invention also relates to anti-inflammatory drugs, anti-rheumatic drugs and anti-ulcer drugs containing the above compounds as active ingredients. The compounds possess a strong antiinflammatory action while causing extremely reduced troubles of digestive organs which is a serious defect with conventional non-steroidal anti-inflammatory drugs, and possess an excellent anti-ulcer action as well.

Dependencies are inferred from the claim text.