申请人:KYORIN PHARMACEUTICAL CO., LTD.
公开号:EP0403980A1
公开(公告)日:1990-12-27
Cyclic anthranilic acid carboxylic acid derivatives of the following formula,
wherein R¹ is hydrogen atom, carboxyl group, lower alkoxy carbonyl group having 1 to 3 carbon atoms, or phenyl group which may be substituted, R² and R⁴ are each independently a hydrogen atom, lower alkyl group having 1 to 3 carbon atoms or benzyl group, R³ is a hydrogen atom, halogen atom, nitro group, amino group, cyano group, carbamoyl group, carboxyl group, lower alkanoylamino group having 1 to 4 carbon atoms, benzoylamino group, lower alkylsulfonylamino group having 1 to 3 carbon atoms or phenylsulfonylamino group which may be substituted by methyl group; the acid addition or alkali salts thereof, are useful as drugs treat autoimmune diseases, antirheumatic agents and therapeutic or prophylactic agents to treat metabolic bone diseases.
下式的环状
蒽酸
羧酸衍
生物、
其中 R¹ 是氢原子、羧基、具有 1 至 3 个碳原子的低级烷氧基羰基或可被取代的苯基,R² 和 R⁴ 各自独立地是氢原子、具有 1 至 3 个碳原子的低级烷基或苄基,R³ 是氢原子、卤素原子、硝基、
氨基、
氰基、
氨基甲酰基、羧基、1 至 4 个碳原子的低级烷基
氨基、苯甲酰
氨基、1 至 3 个碳原子的低级烷基磺酰基
氨基或可被甲基取代的苯基磺酰基
氨基;其酸加成盐或碱加成盐可用作治疗自身免疫性疾病的药物、抗风湿剂以及治疗或预防代谢性骨病的药物。