Compounds of the general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, n and p are as herein defined; exhibit anticonvulsant activity and are thus useful in the treatment of conditions such as epilepsy. Compounds of this class are also useful for the treatment of glaucoma, peptic ulcers, hypertension, congestive heart failure and other types of edema. Furthermore, pharmaceutical compositions containing a compound of formula (I) as well as methods for their use and novel intermediates are disclosed.
                            通式(I)的化合物:##STR1## 其中R.sub.1,R.sub.2,R.sub.3,R.sub.4,R.sub.5,R.sub.6,n和p如此处所定义;表现出抗癫痫活性,因此在治疗癫痫等疾病方面很有用。这一类化合物还对青光眼、消化性溃疡、高血压、充血性心力衰竭和其他类型的
水肿的治疗也很有用。此外,还披露了含有通式(I)化合物的药物组合物,以及其使用方法和新颖的中间体。