Diphenylmethane derivatives, method for producing the same, and reagent for replacing iodothyronine from a protein containing the same, which binds iodothyronine

摘要

The invention relates to compounds of the general formula I IMAGE in which R1 denotes hydrogen or hydroxyl, R2 denotes hydrogen or hydroxyl, R3 denotes hydrogen or alkoxy, R4 denotes hydrogen, CO2H, SO3H, PO3H2 or a salt of the corresponding acid, R5 denotes CO2H, SO3H, PO3H2 or a salt of the corresponding acid and R6 denotes alkoxy, their use for displacing iodothyronines from proteins binding them and a method and reagent for determining iodothyronine in which compounds of this type are employed.