Compounds of the formulas ##STR1## WHEREIN R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, R.sub.8 and X are as hereinafter set forth, Are described. The compounds of formulas I and Ia are useful as neuroleptic agents.
以下式子的化合物:##STR1## 其中R.sub.1,R.sub.2,R.sub.3,R.sub.4,R.sub.5,R.sub.6,R.sub.7,R.sub.8和X的含义如下所述。这些式子的化合物被描述为I和Ia式的有用的神经元
抑制剂。