prov:value
| - i) where appropriate if R1 ???H in formula I, introducing the radical R1 by known processes into the compound obtained in f), g) or h), preferably by appropriate reaction analogous to reaction steps l) and m), where R1 are C1 -C18 -alkyl, preferably C1 -C6 -alkyl, in particular methyl, C2 -C18 -alkenyl, C3 -C18 -alkynyl, C1 -C18 -alkylcarbonyl, C2 -C19 -alkenylcarbonyl, C3 -C19 -alkynylcarbonyl, C
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