| 摘要 |
A benzoxazepine derivative of formula (I) and a pharmaceutically acceptable salt thereof are disclosed, wherein X represents CO or SO2; R1, R2, R3 and R4 are independently selected from H, (C1-4)alkyl, (C1-4)alkyloxy, (C1-4)alkyloxy(C1-4)alkyl, halogen, nitro, cyano, NR8R9, NR8COR10, and CONR8R9, R5; R6 and R7 are independently H or (C1-4)alkyl; R8 and R9 are independently H or (C1-4)alkyl; or R8 and R9 form together with the nitrogen atom to which they are bound a 5- or 6-membered saturated heterocyclic ring, optionally containing a further heteroatom selected from O, S or NR11; R10 is (C1-4)alkyl; R11 is (C1-4)alkyl; A represents the residue of a 4-7 membered saturated heterocyclic ring, optionally containing an oxygen atom, the ring being optionally substituted with 1-3 substituents selected from (C1-4)alkyl, (C1-4)alkyloxy, hydroxy, halogen and oxo. Pharmaceutical compositions comprising these benzoxazepine derivatives are suitable in the treatment of neurological diseases and psychiatric disorders which are responsive to enhancement of synaptic responses mediated by AMPA receptors in the central nervous system.
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