A method of treating animals to obtain muscle relaxation and/or to relieve anxiety is disclosed utilizing novel and known 3-aryloxy and 3-arylthioazetidinecarboxamides having the formula: ##STR1## wherein Z is oxygen or sulfur; B is oxygen or sulfur; Ar is pyridyl or halo substituted pyridyl, phenyl or substituted phenyl; R.sup.1 and R.sup.2 are hydrogen, loweralkyl, aryl, allyl groups, propargyl, cycloalkyl, loweralkylcycloalkyl, cycloalkylloweralkyl, arylloweralkyl and diloweralkylaminoalkyl, and R.sup.1 and R.sup.2 when taken together with the adjacent nitrogen atom may form a heterocyclic amine radical; R.sup.3 is hydrogen, loweralkyl, aryl or arylloweralkyl, and the geometrical isomers thereof and pharmaceutical salts thereof and hydrates thereof when they are possible.
披露了一种利用具有以下结构式的新型和已知的3-芳氧基和3-芳
硫基氮杂环丙酰胺来治疗动物以获得肌肉松弛和/或缓解焦虑的方法:##STR1## 其中Z为氧或
硫;B为氧或
硫;Ar为
吡啶基或卤代
吡啶基,苯基或取代苯基;R.sup.1和R.sup.2为氢、较低烷基、芳基、烯丙基、
丙炔基、环烷基、较低烷基环烷基、环烷基较低烷基、芳基较低烷基和二较低烷
氨基烷基,当R.sup.1和R.sup.2与相邻的氮原子一起时,可能形成杂环胺基;R.sup.3为氢、较低烷基、芳基或芳基较低烷基,以及它们的几何异构体和药用盐以及可能的
水合物。