[(2-Oxo-3-tetrahydrothienylcarbamoyl)-alkylthio] acetic acids, t

Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Allergen or component thereof

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549 63, A61K 3138

Patent

active

044119097

ABSTRACT:
The present invention relates to [(2-oxo-3-tetrahydrothienylcarbamoyl)-alkylthio]-acetic acids, their salts and esters of formula: ##STR1## in which n is 0 or 1, one of the substituents R.sub.1 and R.sub.2 is a hydrogen atom or a methyl group and the other represents a group -S-CH.sub.2 -COOR.sub.3, where R.sub.3 is a hydrogen atom or an alkali metal or a lower alkyl group or a group: ##STR2## It also relates to a process for preparing said acids, salts and esters, and to the drugs containing same.

REFERENCES:
patent: 4241078 (1980-12-01), Chan

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