| 摘要 |
<p>The present invention relates to novel itermediates of formula (1) wherein the wavy bond ( SIMILAR SIMILAR ) represents the racemate, the (R)-enantiomer or the (S)-enantiomer; and R is hydrogen, a carboxyl-protecting group or a cation of an addition salt; or solvate thereof; and to the use thereof in a process for the preparation of certain 3-fluoro oxindole derivatives.</p> |
