Abstract
The synthesis of three cyclic phosphopeptides, which contain a phosphodiester linkage, is described. Starting from either Boc-L-Ser(OBn)-OH or Boc-L-Thr(OBn)-OH, three precursors for the macrocyclization by phosphitylation were prepared. After phosphitylation, using 4-chlorobenzyl bis(N,N-diisopropylamino)phosphinite or 4-chlorobenzyl dichlorophosphinite, subsequent oxidation and hydrogenolysis the cyclic phosphopeptides 18–20 were obtained. The solution conformation of cyclic phosphopeptide 18 was studied by NMR spectroscopy and restrained molecular dynamics calculations.
Original language | English |
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Pages (from-to) | 3722-3730 |
Number of pages | 9 |
Journal | Journal of Organic Chemistry |
Volume | 58 |
Issue number | 14 |
DOIs | |
State | Published - 1993 |