Synthesis of the second generation photoaffinity probes of tautomycin

Five photoaffinity probes of tautomycin, which possess an aromatic azide with linker attached to the 2-position of tautomycin, were prepared in order to study the binding site of tautomycin with protein phosphatase 1 gamma. The photoaffinity probes were synthesized by selectively introducing the photolabeling units onto the 2-position of tautomycin by using oxime chemistry. (c) 2007 Elsevier Ltd. All rights reserved.