| 摘要 |
The new compounds of the general Formula I <IMAGE> (I) (wherein R1 stands for C1-5 alkyl, C2-5 alkenyl, C2-5 alkinyl, C3-7 cycloalkyl or optionally substituted phenyl-(C1-4 alkyl); R2 represents hydrogen or C1-5 alkanoyl; X1 and X2 can be identical or different and each stands for hydrogen, halogen, trifluoromethyl or C1-4 alkoxy; (with the proviso that if R1 stands for ethyl, at least one of R2, X1 and X2 is different from hydrogen) and pharmaceutically acceptable acid additions salts possess valuable anxiolytic properties devoid of sedative effect and can be used in therapy. The compounds of the general Formula I can be prepared by methods known per se. |
