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A method for the production of 9 - oxypteroinsaeure or 9 - oxypteroinsaeurederivaten, in particular 9 - oxypteroylglutaminsaeure (9 - oxyfolinsaeure)
A method for the production of 9 - oxypteroinsaeure or 9 - oxypteroinsaeurederivaten, in particular 9 - oxypteroylglutaminsaeure (9 - oxyfolinsaeure)