Disclosed is a method for producing compounds of formula (I), wherein R1represents H or (CH2)mOH, R2 represents H or (CH2)nOH, R3 represents H or(CH2)pOH and m, n and p represent 2-8 independently from one another. Saidcompounds are particularly suitable for use as food supplements. They arehighly suitable for use in cosmetic formulations as UV filters, for instance.
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