Compounds of the following formula ##STR1## are useful as central nervous system depressants, tranquilizers, sedatives, growth promotors, anti-convulsants and muscle relaxants in mammalian species.
以下化合物的公式##STR1##在哺乳动物物种中作为中枢神经系统
抑制剂、镇静剂、安眠药、促进生长剂、抗惊厥剂和肌肉松弛剂是有用的。