A Robust Method for Preparing Optically Pure MiniPEG-Containing Gamma PNA Monomers

  • Wei-Che Hsieh
  • Danith H. LyEmail author
Part of the Methods in Molecular Biology book series (MIMB, volume 2105)


We report the syntheses of chemical building blocks of a particular class of chiral PNAs, called miniPEG-containing (R)-gamma PNAs (or (R)-MPγPNAs). The strategy involves the application of 9-(4-bromophenyl)-9-fluorenyl as a temporary, safety-catch protecting group for the suppression of racemization in the alkylation and reductive amination steps. The methodology is general and robust, ideally suited for large-scale monomer productions with most synthetic steps providing excellent chemical yields without the need for purification other than a simple workup and precipitation.

Key words

Chiral PNAs Large-scale monomer productions Peptide nucleic acids miniPEG 


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2020

Authors and Affiliations

  1. 1.Institute for Biomolecular Design and Discovery (IBD)Carnegie Mellon UniversityPittsburghUSA
  2. 2.Department of ChemistryCarnegie Mellon UniversityPittsburghUSA

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