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Polyamine toxins isolated from the venoms of spiders and wasps and their synthetic analogues are uncompetitive antagonists of ligand-gated ionotropic receptors in the central- and peripheral nervous systems, and have proved valuable as tools for the investigation of receptor structure and function. In the present letter we describe the efficient solid-phase synthesis (SPS) of novel hybrid toxins using...
The Fukuyama–Mitsunobu amination strategy has emerged as an efficient means of N-alkylation of peptides and sulfonamides, as well as a method for synthesis of polyamines on solid phase. Here, an array of reagent combinations for solid-phase alkylation with secondary alcohols was examined in various solvents. The classical reagents DEAD–PPh 3 as well as DEAD–PEt 3 proved applicable...
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