Xanthine compound, method for preparing thereof, and a pharmaceutical composition comprising the same
申请人:HOKURIKU PHARMACEUTICAL CO., LTD.
公开号:EP0430025A3
公开(公告)日:1992-05-06
A novel xanthine compound having bronchodilating and brain function improving activity represented by the following formula (I) and (II):
wherein R¹ represents a hydrogen atom, 4-methoxybenzyl group, a straight- or branched-chain alkyl group having 1 to 6 carbon atoms, or a cycloalkyl group having 3 to 6 carbon atoms; R² represents a hydrogen atom, a straight- or branched-chain alkyl group having 1 to 6 carbon atoms, or a cycloalkyl group having 3 to 6 carbon atoms; n represents an integer of from 1 to 4; and A represents -COCH₃ or - C(OR³)(OR⁴)CH₃ in which R³ and R⁴ independently represents an alkyl group having 1 to 3 carbon atoms or R³ together with R⁴ represents a polymethylene group having 2 to 4 carbon atoms is disclosed. Also disclosed are a pharmacologically acceptable salt of the same, method for preparing the same, and a pharmaceutical composition for the treatment of respiratory tract disease or brain disfunction comprising the effective amount of same.
一种具有支气管扩张和改善脑功能活性的新型黄嘌呤化合物,其代表性结构式为(I)和(II):其中R¹代表氢原子、4-甲氧基苄基、直链或支链的1至6个碳原子的烷基,或3至6个碳原子的环烷基;R²代表氢原子、直链或支链的1至6个碳原子的烷基,或3至6个碳原子的环烷基;n代表1至4的整数;A代表-COCH₃或-C(OR³)(OR⁴)CH₃,其中R³和R⁴各自独立代表1至3个碳原子的烷基,或者R³与R⁴一起代表2至4个碳原子的聚亚甲基。此外,还公开了该化合物的药理学上可接受的盐、制备方法以及含有该有效量的用于治疗呼吸道疾病或脑功能障碍的药物组合物。