| 摘要 |
THE PRESENT INVENTION RELATES TO COMPOUNDS OF THE FORMULA(FORMULA 1)WHEREIN R1, R2, R3, X,Y AND THE DASHED LINE ARE DEFINED AS IN THE SPECIFICATION, TO INTERMEDIATES FOR THEIR PREPARATION, TO PHARMACEUTICAL COMPOSITIONS CONTAINING THEM AND TO THEIR MEDICINAL USE.THESE COMPOUNDS ARE USEFUL AS PSYCHOTHERAPEUTIC AGENTS.
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