Manipulating the Click Reactivity of Dibenzoazacyclooctynes: From Azide Click Component to Caged Acylation Reagent by Silver Catalysis
作者:Wei Shi、Feng Tang、Jiwei Ao、Qun Yu、Junjie Liu、Yubo Tang、Bofeng Jiang、Xuelian Ren、He Huang、Weibo Yang、Wei Huang
DOI:10.1002/anie.202009408
日期:2020.11.2
Reported here is the efficient acid‐promoted rearrangement and silver‐catalyzed amidation of DBCO, which alters its click reactivity robustly. In the switched click reaction, DBCO, as a caged acylation reagent, enables rapid peptide/protein modification after decaging facilitated by silver catalysts, rendering site‐specific conjugation of an IgG antibody by a Fc‐targeting peptide.
使用二苯并氮杂环辛炔(DBCO)进行的应变促进的叠氮化物-炔烃环加成反应广泛用于无铜生物正交反应中。此处报道的是DBCO的有效酸促进的重排和银催化的酰胺化反应,可显着改变其点击反应性。在切换点击反应中,DBCO作为笼状酰化试剂,可在银催化剂促进的降解作用后快速进行肽/蛋白质修饰,从而使Fc靶向肽特异性结合IgG抗体。