Phenoxyalkylcarboxylic acid derivatives and process for their preparations
申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0306959A1
公开(公告)日:1989-03-15
Phenoxyalkylcarboxylic acid derivatives of the following formula,
wherein R¹ indicates a hydrogen atom, a methyl group or an ethyl group, m is equal to 2, 3 or 4, and n is equal to 3 or 4, their alkali salts and hydrates thereof are useful as antiallergic agents.