In situ carboxyl activation using a silatropic switch: a new approach to amide and peptide constructions.
In situ carboxyl activation using a silatropic switch: a new approach to amide and peptide constructions.
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DOI:
10.1021/ja2065158
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发表时间:
2011-09-14
影响因子:
15
通讯作者:
Liebeskind, Lanny S.
中科院分区:
文献类型:
--
作者:
Wu, Wenting;Zhang, Zhihui;Liebeskind, Lanny S.
The novel reactivity of the O-silylthionoesters with amine nucleophiles to generate oxoamides (rather than thioamides) is described. A straightforward first-generation trimethylsilylation protocol using bistrimethylsilylacetamide (BSA) combined with the unique reactivity of the O-silylthionoesters toward 1° and 2° amines to generate oxoamides provides the simplest means of activating a thiol acid for peptide bond formation at neutral pH. Excellent stereoretention is observed.
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