Palladium-Protein Oxidative Addition Complexes by Amine-Selective Acylation.
Palladium-Protein Oxidative Addition Complexes by Amine-Selective Acylation.
复制标题
胺选择性酰基化钯蛋白氧化添加复合物。
DOI:
10.1021/jacs.0c09180
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发表时间:
2020-12-23
影响因子:
15
通讯作者:
Buchwald SL
中科院分区:
文献类型:
--
作者:
Dhanjee HH;Buslov I;Windsor IW;Raines RT;Pentelute BL;Buchwald SL
Palladium oxidative addition complexes (OACs) are traditionally accessed by treating an aryl halide-containing substrate with a palladium(0) source. Here, a new strategy to selectively prepare stable OACs from amino groups on native proteins is presented. The approach relies on an amine-selective acylation reaction that occurs without modification of a preformed palladium(II)-aryl group. Once transferred onto a protein substrate, the palladium(II)-aryl group facilitates conjugation by undergoing reaction with a second, cysteine-containing protein. This operationally simple method is applicable to native, nonengineered enzymes as well as antibodies and is carried out in an aqueous setting and open to air. The resulting Pd–protein OACs are stable, storable reagents that retain biological activity and can be used to achieve protein–protein cross-coupling at nanomolar concentrations within hours.
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