Abstract
A new variation of the Backbone Amide Linker (BAL) approach has been developed for N(α)-Fmoc solid-phase synthesis (SPS) of C-terminal modified peptides; this provides a convenient route to peptides containing prolyl, N-alkylamino acyl, or histidyl derivatives at the C-terminus. To illustrate the principles, several model peptides were prepared in high yields and excellent purities; diketopiperazines and racemized byproducts which otherwise form when alternative procedures are used were absent from the syntheses reported herein. (C) 2000 Elsevier Science Ltd.
Original language | English (US) |
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Pages (from-to) | 7277-7280 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 41 |
Issue number | 38 |
DOIs | |
State | Published - Sep 16 2000 |
Bibliographical note
Funding Information:We are grateful to NATO (J.A.) and to NIH (T.S.Y., Grant GM 19460) for postdoctoral fellowships. This work was supported by CICYT (PB96-1490) and NIH (Grant GM 42722).
Keywords
- Backbone amide linker
- C-terminal modified peptides
- Diketopiperazines
- Histidine
- Proline
- PyBOP
- Racemization