The invention relates to compounds of formula (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;
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.
本发明涉及式 (I) 化合物。
其中 R 代表选自卤素、烷基、烷氧基、
氨基、烷基
氨基、二烷基
氨基、羟基、三
氟甲基、三
氟甲氧基、硝基、
氰基、SO₂R₁ 或 COR₁ 的基团,其中 R₁ 代表羟基、甲氧基或
氨基;m 为零或 1 或 2 的整数;
A 代表
乙炔基或任选取代的
乙烯基或环丙基;
X 代表-O-或 NH;
R₂代表芳基,当 X 代表氧原子时,R₂也可以代表氢原子或烷基。