HATU is similar to HBTU, but reacts faster with less epimerization during coupling. Nevertheless, HATU is preferred to HBTU in most rapid coupling protocols (while it is utilized in the same manner as HBTU).
Synonym: 1-[Bis(dimethylamino)methylene]–1H-1,2,3-triazolo[4,5-b]pyridinium 3-oxid hexafluorophosphate
White to off-white crystalline powder
Store in a cool and dry place
- HATU should not be used in excess because it can react with the unprotected N-terminal and block further chain elongation.
- HATU is used for synthesis of Nα-urethane protected β-amino alcohols and peptide alcohols.
- Used in rapid automated derivatization of solid-phase supports for oligonucleotide synthesis.
- HATU is a members of the current generation of highly efficient coupling reagents suitable for the synthesis of peptides or proteins containing ‘‘difficult’’ sequences, b-branched and/or N-methylated amino acids.
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I. Abdelmoty, F. Albericio, L. A. Carpino, B. F. Foxman, and S. A. Kates Lett. Peptide Sci., 1994, 1, 57-67.
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L. P. Miranda and P. F. Alewood Proc. Natl. Acad. Sci., 1999, 96, 1181–1186.
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Jeffrey B. Sperry*, Christopher J. Minteer, JingYa Tao, Rebecca Johnson, Remzi Duzguner, Michael Hawksworth, Samantha Oke, Paul F. Richardson, Richard Barnhart, David R. Bill, Robert A. Giusto, and John D. Weaver III
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