5-(2-Hydroxy-3-thiopropoxy) chromone-2-carboxylic acids chemical

Details 5-(2-Hydroxy-3-thiopropoxy) chromone-2-carboxylic acids chemical 5-(2-Hydroxy-3-thiopropoxy) chromone-2-carboxylic acids chemical

1980-03-27

1981-08-04

Chan, Nicky

Drug, bio-affecting and body treating compositions

Nonspecific immunoeffector, per se ; or nonspecific...

Lipid or oil

2603452, A61K 3135, C07D31122

Patent

active

042822475

ABSTRACT:
Anti-anaphylactic and anti-allergic 5-(2-hydroxy-3-thiopropoxy) chromone-2-carboxylic acids of the general formula ##STR1## wherein R is alkyl, alkenyl, hydroxyalkyl, cycloalkyl, cyclo-alkylalkyl, their alkali and alkaline-earth metal salts and 1-4 C alkyl esters as well as a process for the preparation thereof and pharmaceutical compositions containing them.

REFERENCES:
patent: 3427324 (1969-02-01), Fitzmaurice
patent: 3484445 (1969-12-01), Lee et al.
patent: 3786071 (1974-01-01), Cairns et al.

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