| http://www.w3.org/ns/prov#value | - A process for preparing the compounds of the formula I, where R4 is not hydrogen and X is a direct bond or oxygen, which comprises first reducing a benzyl derivative of the formula IIa ##STR20## to the corresponding hydroxyaniline of the formula Vb ##STR21## converting Vb using a carbonyl compound of the formula VI as claimed in claim 2 to the corresponding anilide of the formula VII ##STR22## the
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