| abstract |
(57) [Summary] (Modified) [Constitution] Pyridine-2,6-represented by the following formula (I) Dione derivatives and their pharmacologically acceptable salts. (In the formula, A is an aromatic ring group which may have an alkoxy group or a sulfur-containing heterocyclic group, B is one of the nitrogen-containing heterocyclic groups represented by the following formula, R is a hydrogen atom, an alkoxycarbonyl group, an aliphatic or aromatic substituted carbamoyl group, X is a halogen atom, m shows the integer of 2-10, n shows the integer of 0-3. ) [Effect] The pyridine-2,6-dione derivative has physiological activity such as antiallergic action. |