A levorotatory or dextrorotatory enantiomer of a compound of the structural formula
or pharmaceutically acceptable salt thereof, wherein X. is bromo or chloro; R is hydrogen, fluoro or lower alkyl, R1 is methyl or cyclopropylmethyl when X. is bromo, and R is cyclopropylmethyl when X is chloro. A process for their preparation and antipsychotic compositions containing them.
结构式化合物的左旋或右旋对映体或其药学上可接受的盐,其中X.是
溴或
氯;R是氢、
氟或低级烷基,当X.是
溴时,R1是甲基或
环丙基甲基,当X是
氯时,R是
环丙基甲基。 它们的制备方法和含有它们的抗精神病组合物。