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Preliminary results on a new type of polymer scavenger, acetoacetoxy ethyl methacrylate (AAEM) resin, are reported. AAEM resin can selectively remove primary amines in the presence of secondary amines. Its application in a solution library synthesis is demonstrated.
A `biocompatible' safety-catch linker based on an internal diketopiperazine release has been developed to allow the release of amine based compounds. The synthesis of the linker and its pre-loading with a representative set of amines is described. After immobilization onto an amino Tentagel resin, the linker was activated and the amines were released under biological conditions at pH 8.
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