Abstract: The present invention relates to nucleoside derivatives having photolabile protective groups of general formula (I) in which R1=H, NO2, CN, OCH3, halogen, an alkyl, alkoxy or alkoxyalkyl residue having 1 to 4 C atoms or an optionally substituted aryl residue or an aliphatic acyl residue having 2 to 5 atoms, R2=H, NO2, CN, OCH3, halogen, an alkyl, alkoxy or alkoxyalkyl residue having 1 to 4 C atoms or an optionally substituted aryl residue or an aliphatic acyl residue having 2 to 5 atoms, R3=H, halogen, NO2, CN, OCH3, an alkyl, alkoxy or alkoxyalkyl residue having 1 to 4 C atoms or an optionally substituted aryl residue or aliphatic acyl residue having 2 to 5 C atoms, R4=H, halogen, NO2, CN, OCH3, an alkyl, alkoxy, or alkoxyalkyl residue having 1 to 4 C atoms or an optionally substituted aryl residue or aliphatic acyl residue having 2 to 5 atoms, R5=H, dimethoxytrityl or a protective group common in the chemistry of nucleotides or a functional group com

Abstract: This invention relates to the use of a conjugate comprising an active substance and a native protein which is not recognized as foreign protein for the production of a pharmaceutical preparation for treating and/or diagnosing inflammatory, infectious and/or skin diseases.