摘要 |
The present invention relates to compounds of the general formula IC wherein R<SUP>2</SUP>, R', R'', R<SUP>3</SUP>, R<SUP>6</SUP>, X<SUP>1 </SUP>and X<SUP>1</SUP>' are as defined herein and pharmaceutically active acid addition salts thereof. Compounds of the invention are useful for the treatment of neurological and neuropsychiatric disorders.
|