TOPPA - A Novel Resin for Synthesis of Protected Peptide Amides

This resin type is based on a TentaGel or polystyrene matrix and combines the very acid sensitive trityl handle with the acid sensitive Rink amide handle. The peptide synthesis can be performed by standard conditions. Treatment of the TOPPA resin with diluted AcOH, TFE or mixtures of both in dichloromethane cleaves the trityl ester bond and releases the total protected peptide amide (TOPPA). The C-terminus of the protected peptide amide is still masked by the Rink handle.


L 50

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