AROMATIC KETO COMPOUNDS, THE PREPARATION THEREOF, AND DRUGS AND COSMETICS CONTAINING THESE
Compounds of the general formula I (see formula I) where A is ethylene or methylene which can be substituted by methyl, hydroxyl or oxo, L is one of the following (see formula II) R1 and R2 are hydrogen or methyl, R3 is hydrogen, hydroxyl ar C1-C6-alkoxy, R4 ; is hydrogen, C1-C4-alkyl, halogen or me...
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