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[摘要]:Site-specific functionalization of proteins by bloorthogonal modification offers a convenient pathway to create, modify, and study biologically active biopolymers. In this paper the Staudinger reaction of aryl-phosphonites for the chemoselective functionalization of azido-peptides and proteins was probed. Different water-soluble phosphonites with ollgoethylene substituents were synthesized and reacted with unprotected azido-containing peptides in aqueous systems at room temperature in high conversions. Finally, the Staudinger-phosphonite reaction was successfully applied to the site-specific modification of the protein calmodulin. |
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