| http://www.w3.org/ns/prov#value | - Intermediates of formula (XXXIV) can be prepared by reducing an intermediate of formula (XXXVIII) in the presence H2 and a suitable catalyst, such as for example palladium on charcoal or Raney Nickel, and in the presence of a suitable solvent, such as for example an alcohol, e.g. methanol and the like.
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