The invention concerns 2-oxo-1-pyrrolidine derivatives of general formula (B. geometrical isomers, enantiomers, diastereoisomers, mixtures of each of these and pharmaceutically acceptable salts thereof.
wherein
R1 is methyl,
R2 and R4 are hydrogen.
R3 is alkyl or haloalkenyl, and
X is -COOH. -COOMe or -COOEt.
该发明涉及一般式为(B的2-氧代-1-
吡咯烷衍
生物,包括其几何异构体、对映异构体、顺反异构体、以上任意混合物和药学上可接受的盐。其中R1为甲基,R2和R4为氢,R3为烷基或卤代烯基,X为-COOH、-COOMe或-COOEt。