New anticonvulsant compounds were synthesized and they include the compounds: DL-2-hydroxy-2-(3′,5′-bistrifluoromethylphenyl)butyramide, DL-2-hydroxy-2-(4′-trifluoromethylphenyl)butyramide, DL-2-hydroxy-2-(3′,4′-dichlorophenyl)butyramide, DL-2-hydroxy-2-(3′-bromophenyl)butyramide, DL-2-hydroxy-2-(4′-bromophenyl)butyramide, DL-2-hydroxy-2-(3′-nitrophenyl)butyramide, DL-3-hydroxy-3-(3′,4′-dichlorophenyl)pentanamide, DL-3-hydroxy-3-(4′-bromophenyl)pentanamide, DL-4-hydroxy-4-(3′,4′-dichlorophenyl) hexanamide and DL-4-hydroxy-4-(4′-bromophenyl)hexanamide. They have a significant anticonvulsant activity against pentylenetetrazol-induced seizures as well as unexpected differences in anticonvulsant activity respect those of the non-halogenated compounds. The invention further provides methods for the synthesis of the DL-hydroxy-alkyl-phenyl amides as exemplified in the examples.
                            新的抗惊厥化合物已经合成,它们包括以下化合物:D
L-2-羟基-2-(3′,5′-双三
氟甲基苯基)丁酰胺,D
L-2-羟基-2-(4′-三
氟甲基苯基)丁酰胺,D
L-2-羟基-2-(3′,4′-二
氯苯基)丁酰胺,D
L-2-羟基-2-(3′-
溴苯基)丁酰胺,D
L-2-羟基-2-(4′-
溴苯基)丁酰胺,D
L-2-羟基-2-(3′-
硝基苯基)丁酰胺,DL-3-羟基-3-(3′,4′-二
氯苯基)戊酰胺,DL-3-羟基-3-(4′-
溴苯基)戊酰胺,DL-
4-羟基-4-(3′,4′-二
氯苯基)己酰胺和DL-
4-羟基-4-(4′-
溴苯基)己酰胺。它们对
戊巴比妥诱导的癫痫发作具有显著的抗惊厥活性,同时与非卤代化合物相比具有意想不到的抗惊厥活性差异。该发明还提供了合成DL-羟基-烷基-
苯胺的方法,如示例中所示。