1. CNS-active compound of the formula I:! formula I! ! where Ar is substituted or unsubstituted phenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted tetrahydronaphthyl, substituted or unsubstituted indane or substituted or unsubstituted heterocyclic aryl； the number of Ar substituents can be up to 5, and each substituent is independently selected from the following groups: hydrogen, alkyl, cycloalkyl, halogen, alkoxyl, thioalkyl, sulfoxyalkyl, sulfonalkyl, alkylenedioxy, haloalkyl, haloalkoxy, OH, CH2OH, CONH2, CN, acetoxyl, N (alkyl) 2, benzyl, benzyloxy, α, α-dimethylbenzyl, NO2, CHO, CH3CH (OH), acetyl, OCH2COOH and a substituted or unsubstituted aromatic system； ! said substituted or unsubstituted aromatic system may be selected from the following groups: phenyl, phenoxyl and heterocyclic aryl, in which up to 5 substituents may be present and each substituent independently selected from the following groups: hydrogen, alkyl, cycloalkyl, halogen, alkoxyl, thioalkyl, sulfoxyl , sulfonylalkyl, alkylenedioxy, haloalkyl, OH, CH2OH, CONH2, CN, acetoxyl, N (alkyl) 2, NO2, CHO, CH3CH (OH), acetyl and OCH2COOH； ! each of R1 and R2 is independently selected from the following groups: hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted cycloalkyl, and substituted or unsubstituted CW2 phenyl, where each W is independently selected from among the following groups: hydrogen, methyl, ethyl, provided that both W are not ethyl at the same time, and the number of substituents can be up to 5 in phenyl or cycloalkyl, and each substituent is independently selected from the following groups: halogen, alkoxyl, thioalkyl, sulfoxyalkyl, sulfonylalkyl, halogen1. ЦНС-активное соединение формулы I: ! формула I ! ! где Ar - это замещенный или незамещенный фенил, замещенный или незамещенный нафтил, замещенный или незамещенный тетрагидронафтил, замещенный или незамещенный индан или замещенный или незамещенный гетероциклический арил； число за
