5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids,...

Details 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids,... 5-(2-hydroxy-3-thiopropoxy)chromone-2-carboxylic acids,...

C - Chemistry, Metallurgy

07

D

260/357.5, 260/3

C07D 311/24 (2006.01)

Patent

CA 1140932

ABSTRACT OF THE DISCLOSURE Anti-anaphylactic and anti-alergic 5-(2-hydroxy-3-thiopropoxy) chromone-2-carboxylic acids of the general formula Image 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.

349081

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