The invention is related to compounds, being useful in treating psychosis, of the formula: ##STR1## wherein: R.sup.1 is hydrogen, lower-alkyl or phenyl-lower-alkyl; R.sup.2 and R.sup.4 are the same or different lower-alkyl; R.sup.3 is hydrogen or lower-alkyl; m is two or three; n is an integer from zero to three; and R.sup.5 is hydrogen, lower-alkyl, C.sub.3 -C.sub.7 -monocyclic cycloalkyl, allyl, or propargyl; or a pharmaceutically acceptable acid-addition salt thereof.
本发明涉及一种化合物,其公式如下,可用于治疗精神病:##STR1##其中:R.sup.1是氢、较低烷基或苯基较低烷基;R.sup.2和R.sup.4是相同或不同的较低烷基;R.sup.3是氢或较低烷基;m为2或3;n为0到3的整数;R.sup.5是氢、较低烷基、C.sub.3-C.sub.7-单环环烷基、烯丙基或
丙炔基;或其药学上可接受的酸加盐。