Benzoic acid analogues and their production.

摘要

A benzoic acid derivative of the formula: <CHEM> wherein R<1> and R<2> independently stand for a hydrogen atom, a lower alkyl group, or, they form, together with the adjacent nitrogen atom, a 5- or 6-membered heterocyclic ring, n denotes an integer or 2 to 4 and X stands for a halogen atom or a salt thereof, has excellent antiasthmatic and antiinflammatory activities and therefore is useful as an antiasthmatic or antiinflammatory agent for a mammalian animal.