The phthalidyl-isoquinoline derivatives have the formula: ##STR1## in which R.sub.1, R.sub.2, R.sub.4, R.sub.5 and R.sub.6 each denotes a lower alkoxy group, R.sub.3 denotes a hydrogen atom or a lower alkoxy group and R.sub.7 denotes a lower alkyl group and also include their diastereoisomers and their addition salts with pharmaceutically acceptable acids. These compounds have antiallergic activities and may be used to treat allergic symptoms in human beings and other animals.
邻苯二甲酸异喹啉衍
生物的
化学式为:##STR1## 其中,R.sub.1、R.sub.2、R.sub.4、R.sub.5 和 R.sub.6 分别表示较低的烷氧基,R.sub.3 表示氢原子或较低的烷氧基,R.sub.7 表示较低的烷基,还包括它们的对映异构体和与药学上可接受的酸形成的加合物。这些化合物具有抗过敏活性,可用于治疗人类和其他动物的过敏症状。