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US 6,207,833 B1Granted
Method for the preparation of (2-quinolythio)acetic acid and its hydrochloride
AssigneeLoba Feinchemie AG
InventorHerbert Koller
Life of this patent
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Abstract
The invention relates to a single stage method for preparing 2-(quinolylthio)acetic acid and its salts by reacting 2-chloroquinoline and mercaptoacetic acid
Claims10
Method for the production of 2-(quinolylthio)acetic acid of formula I
- and its salts, comprising reacting 2-chloroquinoline of formula II
- with mercaptoacetic acid in aqueous medium and, if desired, converting the resulting salt into the free acid or the resulting acid into its salt.
Dependencies are inferred from the claim text.