Pyrazines on solid support from peptides by periodinane oxidation of threonine side-chains. A quantitative chemical transformation (QCT) for combinatorial chemistry
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Pyrazines on solid support from peptides by periodinane oxidation of threonine side-chains. A quantitative chemical transformation (QCT) for combinatorial chemistry. / Christensen, Caspar; Tornøe, Christian W.; Meldal, Morten.
I: QSAR and Combinatorial Science, Bind 23, Nr. 2-3, 04.2004, s. 109-116.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Pyrazines on solid support from peptides by periodinane oxidation of threonine side-chains. A quantitative chemical transformation (QCT) for combinatorial chemistry
AU - Christensen, Caspar
AU - Tornøe, Christian W.
AU - Meldal, Morten
PY - 2004/4
Y1 - 2004/4
N2 - The β-hydroxymethylene in threonine residues adjacent to an N-terminal amino acid were subjected to oxidation effected by Dess-Martin periodinane on solid support. Fmoc-cleavage at the TV-terminal amino acid afforded 3,6-dihydro-III-pyrazin-2-one, which oxidized spontaneously to the 1H-pyrazin-2-ones (3a-v). A variety of naturally occurring and synthetic α-amino acids gave rise to a diverse subset of functionalized 1H-pyrazin-2-ones. An amino functionality in the side-chain of the N-terminal amino acid residue allowed elongation by conventional solid phase peptide chemistry (5a-b). Furthermore, elongation of the side-chain with Thr and a second amino acid followed by oxidation resulted in bis 1H-pyrazin-2-ones in high yield (8).
AB - The β-hydroxymethylene in threonine residues adjacent to an N-terminal amino acid were subjected to oxidation effected by Dess-Martin periodinane on solid support. Fmoc-cleavage at the TV-terminal amino acid afforded 3,6-dihydro-III-pyrazin-2-one, which oxidized spontaneously to the 1H-pyrazin-2-ones (3a-v). A variety of naturally occurring and synthetic α-amino acids gave rise to a diverse subset of functionalized 1H-pyrazin-2-ones. An amino functionality in the side-chain of the N-terminal amino acid residue allowed elongation by conventional solid phase peptide chemistry (5a-b). Furthermore, elongation of the side-chain with Thr and a second amino acid followed by oxidation resulted in bis 1H-pyrazin-2-ones in high yield (8).
KW - Dess Martin
KW - Heterocycle on solid phase
KW - PEGA resin
KW - Peptide mimetic
KW - Spontaneous cleavage-oxidation
UR - http://www.scopus.com/inward/record.url?scp=8444251465&partnerID=8YFLogxK
U2 - 10.1002/qsar.200320009
DO - 10.1002/qsar.200320009
M3 - Journal article
AN - SCOPUS:8444251465
VL - 23
SP - 109
EP - 116
JO - Molecular Informatics
JF - Molecular Informatics
SN - 1868-1743
IS - 2-3
ER -
ID: 326847815