A modular synthesis of photoactivable cross-linking agents is described, using an
aromatic core, di- or triethyleneglycol spacers and photoaffinity labeling synthons
that feature either perfluorophenyl azide or aryl(trifluoromethyl)diazirine motifs.
Symmetrical and nonsymmetrical trivalent structures were obtained from phloroglucinol
and dopamine, respectively. Symmetrical tetravalent structures resulted from the coupling
of two dopamine derivatives with oxalyl chloride.
Key words
ethers - amides - arenes - protecting groups - coupling