Indole derivatives

C - Chemistry – Metallurgy – 07 – D

Patent

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C07D 209/42 (2006.01) A61K 31/40 (2006.01) A61K 31/41 (2006.01) A61K 31/44 (2006.01) A61K 31/535 (2006.01) A61K 31/55 (2006.01) C07D 401/12 (2006.01) C07D 403/12 (2006.01) C07D 405/12 (2006.01) C07D 409/12 (2006.01) C07D 413/12 (2006.01) C07D 417/12 (2006.01)

Patent

CA 2094076

CH178A Abstract The invention relates to compounds of formula (I). Image (I) or a salt, or metabolically labile ester thereof wherein R represents a group selected from halogen, alkyl, alkoxy, amino, alkylamino, dialkylamino, hydroxy, trifluoromethyl, trifluoromethoxy, nitro, cyano, SO2R1 or COR1 wherein R1 represents hydroxy, methoxy, or amino; m is zero or an integer 1 or 2; A represents an ethynyl group or an optionally substituted ethenyl, or cyclopropyl group or a substituted ethenyl group; X represents -O- or NH; R2 represents an aryl group and when X represents an oxygen atom R2 may also represent a hydrogen atom or an alkyl group; which are antagonists of excitatory amino acids, to processes for their preparation and to their use in medicine.

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