PHENOXYALKYLCARBOXYLIC ACID DERIVATIVES AND PROCESS OF PREPARING THE SAME

摘要

Novel phenoxyalkylcarboxylic acid derivatives represented by the following general formula (1) wherein R<1> denotes a hydrogen atom, a methyl group or an ethyl group, and the alkali salts thereof having a strong and selective leucotriene antagonistic action and useful for prophylaxis and therapy of allergic diseases such as asthma, processes of preparing the same and anti-allergic agents comprising the same.