Document Type

Article

Rights

This item is available under a Creative Commons License for non-commercial use only

Disciplines

1.4 CHEMICAL SCIENCES, Organic Chemistry

Publication Details

Tetrahedron Letters

Abstract

Orthogonally protected thioamide-containing dipeptides were efficiently and cleanly prepared from the precursor dipeptides using Curphey’s method (P4S10, hexamethyldisiloxane (HMDO), reflux, DCM) in 67-96% isolated yield. This was in contrast to the use of Lawesson’s or Berzelius’ reagents where significant issues with reaction non-completion, decomposition and purification were observed. Subsequent clean removal of the dipeptides’ t-butyl ester protecting groups gave thioamide dipeptide acids which were suitable for use in solid-phase peptide synthesis (SPPS).

DOI

10.1016/j.tetlet.2016.10.036

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