Tritiation of azido-labeled diiodo cabazitaxel (Jevtana) and docetaxel (Taxotere) derivatives to generate3H-photoaffinity probes

Autor: Jens Atzrodt, Remo Weck, Seth Jones, Annina Burhop, Volker Derdau
Rok vydání: 2018
Předmět:
Zdroj: Journal of Labelled Compounds and Radiopharmaceuticals. 61:895-902
ISSN: 0362-4803
DOI: 10.1002/jlcr.3675
Popis: Radiolabelled azidophenyl analogues can make powerful photoaffinity probes for the identification of molecular targets. We describe our efforts to prepare tritiated azidophenyl analogues of the taxols cabazitaxel and docetaxel. Late-stage tritiation by isotope exchange with diiodo precursors resulted in reduction of the azide moiety, which could only be overcome by addition of high excess of a sacrificial azide. Iodine-deuterium exchange experiments on a model system established that deiodination with concomitant azide reduction is a general problem when performing such isotope-exchange reactions on azide-containing aryl iodides.
Databáze: OpenAIRE