Azido-Adamantyl Tin Sulfide Clusters for Bioconjugation
作者:Jan-Philipp Berndt、Annikka Engel、Radim Hrdina、Stefanie Dehnen、Peter R. Schreiner
DOI:10.1021/acs.organomet.8b00734
日期:2019.1.28
toward biomolecule-functionalized tin sulfideclusters. A novel bifunctional orthogonal spacer was developed and used for the formation of a trifold azido-adamantyl-terminated cluster, serving as a buildingblock for click reactions. The azido cluster was quantitatively bioconjugated via a strain-promoted 1,3-dipolar cycloaddition, affording a peptide-decorated cluster.
Backbone-enabled site-selective modification of peptides with benzoquinone via Pd-catalyzed δ-C(sp2)–H functionalization has been achieved. The amide groups of peptides serve as internal directional groups, facilitating C–H functionalization through a kinetically less favored six-membered palladacycle. This methodology presents novel opportunities for the late-stage site-selective diversification of