摘要 |
New central nervous system agents conform to formula I: <IMAGE> (I) wherein R=H or C1-4 alkoxy; X=CH or N; Y=NH, O or S; Z=C1-4 alkyl, C3-6 cycloalkyl, C2-3 alkenyl, NH2, C1-4 alkylamino, or C1-4 alkoxyalkyl, with the proviso that Z may not be CH3 when R=H, X=CH, and Y=NH and Z may not be CH3 when R=H, X=N and Y=NH and NHC(O)Z is in the para- position.
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