SO3Na HS F NH 2 Amine-selective conjugation CN NH O O S O CBTF N N N N CN N N Cu N N Cu N N3 N ADVANTAGES: N N N Cys-selective conjugation N N N N Alkyne-selective conjugation G1-Chelazide - faster reaction rate - higher selectivity - full biocompatibility (exogeneous copper source is not needed) CN S H N BIOMOLECULE (antibody,enzyme, polypeptide, etc) O LINKER ADVANTAGES: - increased selectivity - better reproducibility - higher reliability - elevated stability of educts and adducts O O O O + + OH OH O + O X = H, Cl, Br, I N X X = H, Cl, Br, I ADVANTAGES: People suffering from cancer: O- SPSA-click O Click&Release4 O - mild cleavage conditions - high efficiency of release - elevated stability of educts and adducts - possibility of transtagging-cleavage* 13 mln X O O O O N O N+ SOE-link3 Lysosomal release OH OH FUNCTIONAL TAG (cytotoxic, contrast, fluorescent agent, etc) X N- 2x ADCs currently on the market: O N+ N O — 30x ADCs in clinical development: NH 2 , — CO 2 N ADVANTAGES: - Copper-catalyzed or strain-promoted pathways - tunable reactivity of sydnone scaffold (by changing the nature of X) - the fastest among described strainpromoted couplings (k2 up to 5M-1s-1)5 - generation of a stable pyrazole linkage 1 Bioconjugate Chem. 25, 202–206 (2014); Patent WO2015001117 (2014). 2 Angew. Chem. Int. Ed. 53, 5872–5876 (2014); Patent WO2014057201 (2014). 3 Bioconjugate Chem. Submitted (2015). 4 Patent application EP14305933.5 (2014). 5 Angew. Chem. Int. Ed. 52, 12056–12060 (2013); Chem. Commun. 10.1039/C4CC03816A (2014); Patent application EP14305726.3 (2014). Contact SYNDIVIA Mail : [email protected] Web : http://www.syndivia.com
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