Preparation of 3-fluoro oxindole derivatives

Details Preparation of 3-fluoro oxindole derivatives Preparation of 3-fluoro oxindole derivatives

1998-06-18

1999-04-06

Davis, Zinna Northington

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

560 21, C07C20506

Patent

active

058921060

ABSTRACT:
The present invention relates to novel intermediates of the formula ##STR1## wherein the wavy bond () 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.

REFERENCES:
patent: 5565483 (1996-10-01), Hewawasam et al.
patent: 5602169 (1997-02-01), Hewawasam et al.

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