The invention relates to compounds of formula
wherein R represents hydrogen or fluorine and R' represents 3-pyridyl or 4-pyridyl or a salt thereof which compounds exhibit psychotropic activity and are useful as antidepressants.
                            本发明涉及式中 R 代表氢或
氟和 R' 代表 3-
吡啶基或 4-
吡啶基的化合物或其盐,这些化合物具有精神活性,可用作抗抑郁药。