| 摘要 |
Compounds of the formula <IMAGE> wherein R1 is hydrogen, lower alkyl, halo-lower alkyl, hydroxy-lower alkyl, di(lower alkyl)amino-lower alkyl, phenyl, tolyl, methoxy-phenyl, nitro-phenyl, halo-phenyl, pyridyl, pyrimidinyl or -CO-R4, where R4 is hydrogen, alkyl or 1 to 17 carbon atoms, alkoxy of 1 to 2 carbon atoms, phenyl, tolyl, methoxy-phenyl, halo-phenyl, nitro-phenyl or pyridyl; R2 is hydrogen, fluorine, chlorine, or bromine; and R3 is chlorine, bromine or lower alkyl, and non-toxic, pharmacologically acceptable acid addition salts of certain of these compounds. The compounds as well as the salts are useful as anxiolytics, tranquilizers, sedatives or neuroleptics. |
